JP2892933B2 - Combine waste straw transporter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a chain having a protrusion, and a chain arranged opposite to the lower side of the chain.
Equipped with an extendable guide rail, and provided with a waste straw transport section that obliquely transports the waste straw in a downside posture inherited from the threshing feed chain to the tip side in plan view while holding it between the chain and the guide rail. A swinging mechanism interlocking with the guide rail so as to extend and contract the guide rail into a contracted state in which the straw is supplied to the front straw shredding apparatus and a stretched state in which the guide rail is supplied to the rear straw binding apparatus. Movable first
Opening and closing an operation arm and an exhaust straw guide plate provided in the exhaust straw shredding device so as to be openable and closable, and an open state for guiding the exhaust straw to the exhaust straw shredding device and a closed state for guiding the exhaust straw to the exhaust straw bundling device A swingable second operation arm that is interlocked with the discharge straw guide plate so as to be operated, and an operation lever for the guide rail and the discharge straw guide plate is provided between a pair of guide grooves of a lever guide. By performing a swing operation along one guide plate operation guide groove, the operation lever is disengaged from the engagement portion of the first operation arm and the second operation arm is released.
The second operating arm swings together with the operating lever by engaging with the engaging portion of the operating arm so as to open and close the discharge straw guide plate while holding the guide rail in a contracted state. By swinging along the other rail operation guide groove of the pair of guide grooves, the operation lever disengages from the engagement portion of the second operation arm and engages with the engagement portion of the first operation arm. The first operation arm swings together with an operation lever to hold the discharge straw guide plate in a closed state, and the guide rail can be operated to expand and contract, thereby providing a combine discharge straw transport device.

[0002]

2. Description of the Related Art Conventionally, in the above-described waste straw transporting apparatus, the length of a guide rail can be set to the shortest length that can be supplied to a front waste straw shredding device, and can be supplied to a rear waste straw binding device. It was only possible to set the length in two ways (for example, Japanese Utility Model Laid-Open No. 2-17047).

[0003]

According to the above-mentioned conventional construction, the waste stirrer sent to the binding device always passes through the guide rail set to the longest length. The place where the nipping and conveying ends is the same position for all the waste straws sent to the binding device, and the portion of each waste straw that is almost the same distance from the lower end of the waste straw faces the binding device. I was As a result, the length from the lower end of the waste straw to the binding position is the same regardless of whether the straw is long or short, and the length from the lower end of the waste straw to the binding portion is equal to the binding position. The balance with the length from the tip to the tip deteriorated due to the straw on either side of the length, and the binding condition was likely to become unstable. Therefore, in order to improve the balance and stably tie both the long and short waste straws, the waste straw binding device itself can be slid left and right to change the binding position. However, this configuration requires an actuator, a rail for sliding movement, and the like, which not only increases the weight but also tends to complicate the structure.

SUMMARY OF THE INVENTION An object of the present invention is to provide a waste straw transporting device that can change the binding position for each of the long and short waste straws in accordance with the length of the waste straw, and can prevent an increase in weight and a complicated structure. It is in.

[0005]

According to a feature of the present invention, in the combine stirrer conveying device described at the beginning, a plurality of engaging grooves arranged in the operating direction of the operating lever are formed on the lever guide. The guide rail is provided so as to communicate with the groove, and is selectively engaged with and held by the plurality of engagement grooves so that the guide rail expands and contracts in a state of supplying the stirrer to the binding device. The point is that it is configured.

[0006]

The length of the guide rail can be set to a length corresponding to the operation position of the operation lever by holding the operation lever at an arbitrary operation position in the path of the operation lever by the engagement groove. it can. In this case, the longer the length of the guide rail, the more the oblique conveyance in the sandwiched state between the chain and the guide rail continues to the vicinity of the binding device,
The length from the end of the straw to the binding position becomes shorter. Conversely, the shorter the length of the guide rail, the more the oblique conveyance ends at a position distant from the binding device, after which the waste straw is sent in parallel to the rear, and the part far from the stock end of the waste straw is removed. Faced with the binding device, the length from the lower end of the waste straw to the binding position increases.

Accordingly, for example, in the case of a short straw, the length of the guide rail is set to be longer, and the length from the stock end of the straw to the binding position is shortened. By setting the length to be short and increasing the length from the lower end of the waste straw to the binding position, the balance between the length from the stock end of the waste straw to the binding position and the length from the binding position to the spike tip is obtained. Can be improved for both long and short waste straws, and both waste straws can be stably bound.

Further, in the above configuration, since only the engagement groove capable of holding the operation lever at an arbitrary operation position in the operation path of the operation lever is provided, for example, when the binding device itself is slid right and left. Such an increase in weight and complication of the structure can be prevented.

[0009]

As a result, it is possible to provide a waste straw transporting device which can stably bind the waste straw regardless of its length, can reduce the weight, and has a simple structure and can be manufactured at low cost. .

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 4 and FIG. 5, the waste straw that has been carried out from the threshing feed chain of the threshing device 1 in a sideways posture is transported obliquely to the tip side in plan view by the waste straw transport portion 2 of the waste straw transport device. , And is sent to the front waste straw shredding device 3 or the rear waste straw bundling device 4.

The discharge straw transporting unit 2 of the discharge straw transporting device includes:
As shown in FIG. 1, a chain 2a having a projection and a slide-extendable guide rail 2b arranged to face the lower side of the chain 2a are provided, and a waste straw is formed between the chain 2a and the guide rail 2b. It is configured so that it is transported while being clamped between.

An operation lever 16 is provided on the discharge straw transport device.
The discharge straw release position is changed by extending and retracting the guide rail 2b in conjunction with the operation of the discharge straw shredding device 3.
A guide rail expansion / contraction operation mechanism 23 for selectively supplying the waste straw to the waste straw binding device 4 is provided. The guide rail telescopic operation mechanism 23 will be described in detail. As shown in FIGS. 1, 2, and 5, a wire 9 for extension operation and a wire 10 for contraction operation are attached to the guide rail 2b, and the cockpit 6 The support box 8 is housed in a part of the Glen tank 5 at the rear of the pulley 11, and each of the two sets of winding grooves in the pulley 11 rotatably supported around the horizontal axis P1 of the support box 8 is Wires 9 and 10 are wound in opposite directions. And the horizontal axis P of the support box 8
A large-diameter sector gear 12 is rotatably supported around 2, and the sector gear 12 meshes with a small-diameter gear 13 fixed to the pulley 11.

On the other hand, around the horizontal axis P3 in the upper portion of the support box 8, the first operation arm 14 having an L-shaped side surface is provided.
Are rotatably supported, and the first operation arm 14 and the sector gear 12 are linked to each other via a link 15. An operation lever 16 is supported on the boss portion 14b of the first operation arm 14 so as to be swingable around the horizontal axis P3 and to be tilted to the left and right by a stupid hole structure. A spring 17 for prevention is attached.

With the above structure, the operation lever 16 is
In the left direction, the engaging portion 14a of the first operating arm 14
, The pulley 11 can be largely rotated forward and backward by the swinging operation of the operation lever 16 around the horizontal axis P3. That is, as shown in FIGS. 1 and 3, the operation lever 1 extends along the rail operation guide groove of the lever guide 18.
6 is operated to the position (A), this operation is performed by the sector gear 12.
In FIG. 1, the pulley 11 rotates counterclockwise, the wire 10 is wound around the pulley 11, and the guide rail 2b is contracted. Conversely, when the operation lever 16 is swung to the position (B), the pulley 11 rotates clockwise in FIG.
1, and the guide rail 2b is extended.

As shown in FIGS. 1 and 2, a second operation arm 19 is swingably supported around the horizontal axis P3 of the support box 8, and as shown in FIG. On the upper surface of the device 3, it can swing open and close around the horizontal axis P4,
Further, a discharge straw guide plate 21 urged toward the closing side by a spring 20 is provided, and the second operation arm 19 and the discharge straw guide plate 21 are connected via a wire 7.

With the above structure, the operation lever 16 is
By tilting to the right and engaging with the engagement portion 19a of the second operation arm 19, the operation lever 16 can swing the second operation arm 19 around the horizontal axis P3. That is, when the operation lever 16 is swung to the position (C) along the guide plate operation guide groove of the lever guide 18, the discharge straw guide plate 21 can be closed and the operation lever 1 is closed.
6 is moved to the position (D), the straw exit guide plate 2 is moved.
1 can be opened.

The first operation arm 14 and the second operation arm 14
When the guide rail 2b is contracted as shown in FIGS. 1 and 3 (in a state where the operation lever 16 is operated to the position (A)) by the combination with the operation arm 19, the operation lever 16 is moved to the second operation arm 19. Guide plate 2
1 is closed [(C) position], the discharge straw is fed from the discharge straw guide plate 21 to the discharge straw binding device 4 and the binding process is performed, and the discharge straw guide plate 21 is opened upward [(D )
Position], the waste straw can be sent to the waste straw shredding device 3 and switched to a state for shredding. Conversely, the guide rail 2b is extended by engaging the operation lever 16 with the first operation arm 14 with the discharge straw guide plate 21 closed (the operation lever 16 is operated to the (C) position). The waste straw can be sent into the waste straw binding device 4 by the packer 24.

Further, the lever guide 18 is provided with the operation lever 16 when the straw is supplied to the binding device 4.
Lever holding means 25 capable of holding the operation lever 16 at an arbitrary operation position in the operation path of FIG. The lever holding means 25 includes an engagement groove 25 capable of engaging the operation lever 16.
a is formed on the lever guide 18 along the operation direction of the operation lever 16. With this structure, the length of the guide rail 2b can be set to a length corresponding to the operation position of the operation lever 16. That is, the operation lever 16 is moved to the engagement groove 25a at the positions (E) and (F) in FIG.
Guide rails 2b,
It can be in a more extended state.

In this case, the longer the length of the guide rail 2b is set, the more the oblique conveyance in the state of being sandwiched between the chain 2 and the guide rail 2b is continued to the vicinity of the binding device 4, and the stock of the straw is discharged. The length from the end to the binding position is reduced. Conversely, the shorter the length of the guide rail 2b is set, the more the oblique conveyance ends at a position distant from the bundling device 4 and thereafter, only a rearward parallel movement,
The length from the end of the straw to the binding position becomes longer.

Accordingly, in the case of a short discharge stirrer, the operating lever 16 is engaged in the engagement groove 25a at the position (B), and as the discharge stirrer becomes longer, the engagement grooves at the positions (F) and (E) are increased. 25
a, the balance between the length of the straw from the stock end to the binding position and the length from the binding position to the tip can be improved for both the long and short straws. It can stably bind with the straw. It is also easy to intentionally set the binding position closer to the end of the plant or closer to the tip of the ear.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a side view showing a linkage structure between an operation lever and a waste straw transport device.

FIG. 2 is a longitudinal sectional front view near an operation lever and a pulley.

FIG. 3 is a plan view of a lever guide for the operation lever.

FIG. 4 is a plan view showing a transport state of a waste straw.

FIG. 5 is an overall plan view of the combine.

[Explanation of symbols]

 2 Discharge stirrer transporter 2a Chain 2b Guide rail 14 First operating arm 14a First operating arm engaging portion 16 Operating lever 18 Lever guide 19 Second operating arm 19a Second operating arm engaging portion 25a Engagement groove

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-49342 (JP, A) JP-A 2-17047 (JP, U) JP-A 62-24641 (JP, U) JP-A 61- 142559 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) A01F 17/02 A01F 12/40 303

Claims (1)

(57) [Claims] 1. A chain having projections (2a) and a guide rail (2b) which is disposed along the lower side of the chain (2a) and is extendable and retractable, and is inherited from a threshing feed chain. An exhaust straw transport section (2) is provided for obliquely transporting the waste straw in a laid-down posture between the chain (2a) and the guide rail (2b) to the tip side in plan view while holding the guide rail (2b). The front of the waste straw shredded
The contracted state where the straw is supplied to the position (3) and the straw is connected to the rear
Expanding and contracting operation to the extended state to supply the straw to the bundle device (4)
Swingable linked to the guide rail (2b)
First operating arm (14) and the above-mentioned waste straw shredding device
(3) Discharges a waste straw guide plate (21) that can be freely opened and closed.
Open state for guiding the straw to the shredding device (3);
Open and close to the closed state to guide the straw to the straw bundling device (4)
The swing linked to the straw exit guide plate (21) to operate
A movable second operation arm (19)
The guide rail (2b) and the waste straw guide plate (21)
Operating lever (16) for the lever guide (18)
Along the guide plate operation guide groove of one of the pair of guide grooves.
By performing the swing operation, the operation lever (16) is
Disengage from the engaging portion (14a) of the first operation arm (14)
And an engagement portion (19a) of the second operation arm (19).
And the second operation arm (19) is operated by the operation lever (1).
6) Swings together to bring the guide rail (2b) into a contracted state.
You can open and close the waste straw guide plate (21) while holding it.
And operating the operating lever (16) with the pair of guides.
Swings along the other rail operation guide groove
By operating, the operation lever (16) is moved to the second operation lever.
Arm (19) is disengaged from the engaging portion (19a).
Engaging with the engaging portion (14a) of the first operating arm (14)
The first operation arm (14) swings together with the operation lever (16).
Moving to keep the exhaust straw guide plate (21) closed.
The guide rail (2b) is configured to be able to expand and contract.
An apparatus for conveying a straw in a combine, wherein an operation lever (16) is operated by the lever guide (18).
The plurality of engagement grooves (25a) arranged in the direction are operated by the rail.
It provided with a state communicating with the guide groove, operation lever
(16) is alternatively engaged with the plurality of engagement grooves (25a).
The guide rail (2)
b) expands and contracts in a state where the straw is supplied to the binding device (4).
Combine stirrer transporter configured to perform