JP3340915B2 - Combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a waste straw transport mechanism for receiving a waste straw from a threshing device, and holding and transporting the waste straw by a waste straw chain and a clamping rail facing the waste straw chain from below. The present invention relates to a combine in which an upper cover for covering a waste straw transport mechanism from above can be freely opened and closed.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned combine, a transport frame of a waste straw chain is fixed to a support frame on a machine body side, and the position of the waste straw chain is fixed to a holding rail.

[0003]

According to the above-mentioned conventional construction, the position of the waste straw chain is fixed to the holding rail, so that the waste straw is clogged between the waste straw chain and the holding rail. In this case, the waste straw that was caught by the strong force had to be forcibly removed, and the removal work was troublesome.

An object of the present invention is to improve the workability of maintenance by making it possible to easily remove a waste straw even if the waste straw is clogged between the waste straw chain and the holding rail.

[0005]

[Means for Solving the Problems]

[Structure] The feature of the invention according to claim 1 is that, in the combine described at the beginning, a drive shaft of the discharge stirrer transfer mechanism is arranged at a transfer end side, and a transmission shaft that supplies power for driving the handling cylinder is provided. At the opposite side of the handle, it is arranged parallel to the handle cylinder axis,
Said transmission shaft and a transmission connected to the drive shaft of the exhaust straw chain, constitute the exhaust straw chain freely vertically repositioning relative to the sandwiching rail around the drive shaft, the exhaust Warachi
Acting on the holding straw chain and
It predetermined distance above said discharge straw chain from the clamping rail by the urging force urging said increased with opening the upper cover with increased biased in a direction Ru away from
Only constitute chain lifting means to raise the remote maintenance position, with rising biasing the exhaust straw chain
When the upper cover is closed against the power, the upper cover is closed.
As a result, the waste straw chain pushes against the upper cover.
Lower the upper cover so that it is
Provide a pressing part for the exhaust straw chain and
That is, it constitutes a step .

A feature of the invention according to claim 2 is that, in the invention according to claim 1, the upper case supporting the handle cylinder is opened and closed around an axis parallel to the handle cylinder axis on the side opposite to the handle. The threshing device is pivotally supported on the lower case to constitute the threshing device, and the upper case extends to the lower side in the grain stalk transport direction, and the extended portion constitutes the upper cover.

[0007] wherein the configuration of the invention according to claim 3 is the invention according to claim 1 or 2, wherein is provided the exhaust straw chain depressed amount changes adjustable adjusting mechanism, the exhaust straw chain in the working position The distance to the holding rail is configured to be changeable and adjustable.

According to the structure of the first aspect, when the waste straw is clogged between the waste straw chain and the sandwiching rail, when the upper cover is opened, the waste straw chain rises and the sandwiching occurs. Since the maintenance posture is located upward from the rail, the pinching force applied to the exhaust straw can be released, and the exhaust straw can be easily removed. Then, when the upper cover is closed after the removal of the waste straw, the waste straw chain is lowered and the working posture approaches the holding rail, whereby the delivery of the waste straw can be restarted. As described above, the waste straw chain is switched between the operating posture and the maintenance posture in accordance with the opening and closing of the upper cover, so that the switching operation can be easily performed.

According to the second aspect of the present invention, when the waste straw is clogged between the waste straw chain and the holding rail, when the upper case is opened, the waste straw chain rises with the upper case and moves upward from the holding rail. Since the maintenance posture is away from the main body, the pinching force applied to the waste straw can be released, and the waste straw can be easily removed. Then, if the upper case is closed after the removal, the waste straw chain is lowered and the working posture approaches the holding rail, whereby the transport of the waste straw can be resumed. As described above, the waste straw chain is switched between the operating posture and the maintenance posture in accordance with the opening and closing of the upper case, so that the switching operation can be easily performed.

According to the third aspect of the present invention, in addition to the effect similar to that of the first or second aspect, the pressing portion for the waste straw chain is provided on the upper cover to lower the chain. Since the means is configured, the structure of the chain lowering means can be simplified. Since the set interval between the waste straw chain and the holding rail can be changed and adjusted, the waste straw can be smoothly transported by setting the set interval to a suitable interval according to the situation of the waste straw.

[Effect] Therefore, according to the configuration of the first aspect, even if the exhaust stirrer is clogged between the exhaust stirrup chain and the holding rail, it can be easily removed, and the workability of maintenance can be improved. In addition, the operability of the switching operation for switching the waste straw chain between the operating posture and the maintenance posture can be improved.

According to the second aspect of the present invention, even if the waste straw is clogged between the waste straw chain and the holding rail, it can be easily removed, and the workability of maintenance can be improved.
In addition, by opening and closing the upper case, the exhaust straw chain can be switched between the working posture and the non-working posture, and the operability of the switching operation can be improved.

According to the structure of claim 3, in addition to the effect similar to the effect of the structure of claim 1 or 2, the structure can be made compact and the exhaust straw chain and the sandwiching rail can be connected. In the meantime, the straw was less likely to be clogged.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a traveling machine body 2 equipped with a crawler traveling device 1, a mowing pre-processing unit 3 equipped with a front part of the traveling machine body 2 so as to be able to move up and down around a horizontal axis,
A threshing device 4 mounted on the left side of the traveling machine body 2 is provided, and a waste straw processing unit 5 is provided at a rear portion of the threshing device 4 to constitute a combine.

As shown in FIG. 1 and FIG.
In the handling room, the spike portion is handled by a handling cylinder 9 which is driven and rotated in a handling room 8 while the feed chain 6 and the holding rail 7 hold the stem side of the grain stalk, and the receiving net 10 is leaked. The processed material is sorted in the lower sorting section into grains, second-pieces, waste straw and the like, and the grains are carried out to the outer grain recovery device on the lateral side by the first-piece collecting screw 11, and the second pieces are separated. Second collection screw 1
The processing is returned to the inside of the handling room 8 in step 2 and reprocessed, and the fine waste straw is discharged to the outside by the dust blower 13.

As shown in FIG. 3, a power transmission shaft 14 for driving the drum driven by the prime mover is provided on the opposite side of the port 15 in parallel with the axis P of the drum. 5 is connected to the input pulley 16 on the upper side in the grain conveying direction via a belt transmission mechanism 17, and the transmission shaft 14 extends to the lower side in the grain conveying direction, and as shown in FIG. The upper case 18 is pivotally supported on the lower case 19 so as to be freely openable and closable about the axis Q of the transmission shaft 14, and the upper case 18 and the support frame 20 thereof extend to the lower side in the grain culm transport direction, The extended portion 18A (corresponding to the upper cover) covers the waste straw processing section 5 (see FIGS. 2 and 4).

As shown in FIGS. 3 and 4, the waste straw processing unit 5 includes a stock transport mechanism 21 (corresponding to a waste straw transport mechanism) which clamps and transports the stock side of the waste straw in the lower side of the threshing device 4. )When,
A waste straw transporting device 23 comprising a tip locking and transporting mechanism 22 for locking and transporting the tip side from above is provided, and a waste straw cutter 24 as a first waste straw processing device (FIG. 1) is provided at the rear of the threshing device 4.
A discharge straw dropper 25 as a second waste straw processing device is provided on the rear side of the discharge straw cutter 24. A processing switching mechanism 26 is provided for switching between a state in which the discharge is performed in a long straw state.

As shown in FIGS. 6, 10 and 12, the stock transfer mechanism 21 is of an upper chain type, and a chain 27 having a projection is formed by a guide wall 29 formed along the outer peripheral edge of a transfer frame 28; Wrapping around a drive sprocket 30 disposed on the transport end side of the transport frame 28 and a U-shaped guide frame 32 for chain tension, which is movable back and forth in the transport direction and is urged toward the upstream side of the transport by a compression coil spring 31, On the transport end side of the transport frame 28,
A stopper wall 33 (see FIG. 9) is provided to prevent the displacement of the chain 27 with the protrusion outward in the width direction, thereby forming a waste straw chain 34, and the holding rail 35 is arranged to face the waste straw chain 34 from below. Then, the discharge straw chain 34 and the sandwiching rail 35 are set in an inclined posture with respect to the transport action path R of the feed chain 6 in a plan view so that the discharge straw is transported obliquely to the tip side (see FIG. 3). , And is supported by the support frame 20.

As shown in FIG. 3 and FIG. 8, the spike engaging and transporting mechanism 22 includes a driving sprocket 3
6 and a chain 38 with a locking claw are wound around the idler wheel 37 on the transport start end side, and the drive sprocket 36 is parallel to the stock transport mechanism 21 in plan view and coaxial with the drive sprocket 30 of the exhaust straw chain 34. As a result, the transport frame 28 is supported by the support frame 20.

As shown in FIGS. 3 and 8, a drive system of the stock transfer mechanism 21 and the tip locking transfer mechanism 22 is provided at an extending end of the transmission shaft 14 for driving the handle. The bevel gear mechanism 39 suspended and supported by the support frame 20 is interlocked and connected to the bevel gear mechanism 39 and the two drive sprockets 3.
0 and 36 are linked via a chain transmission mechanism 40.

As shown in FIGS. 10, 11, 12 (a) and 12 (b), the exhausting straw chain 34 is pivotally movable up and down around the axis of the driving sprocket 30 at the end thereof. And a chain raising means 41 for raising the exhaust straw chain 34 to a maintenance position away from the holding rail 35 as the upper case 18 is opened, and a drain straw chain 34 as the upper case 18 is closed. There is provided a chain lowering means 42 for lowering the operating posture close to the holding rail 35.

As shown in FIGS. 6, 7 (a) and 7 (b), the chain lifting means 41 projects a rod 43 upwardly from the side of the starting end of the waste straw chain 34.
Upper and lower support plates 44 and 45 for vertically inserting and guiding the third through the respective guide holes 44a and 45a are provided on the support frame 20,
A flange 46 is formed on the rod 43 between the upper and lower support plates 44, 45, and a compression coil spring 47 is provided between the flange 46 and the lower support plate 45 to urge the rod 43 upward. Then, the waste straw chain 34 can be raised until the flange 46 contacts the upper support plate 44.

The chain lowering means 42 moves the rod 43 of the waste straw chain 34 to the upper case 18 such that the lower straw 18 is pushed down by the upper case 18 in the above-mentioned working posture as the upper case 18 is closed. A pressing plate 48 (see FIG. 4) for pressing the upper end of the rod 43 is provided, and a nut 49 as a pressed portion of the rod 43 pressed by the pressing plate 48 is provided on a male screw portion 43a formed on the upper end of the rod.
As the waste straw chain 34 is pushed down by the upper case 18, the nut 49 that contacts the upper support plate 44 is screwed to each other, and the lower nut 49 contacts the upper support plate 44. Until it hits, the exhaust straw chain 34 can be lowered. In this configuration, when the vertical position of the nut 49 is changed, the amount by which the waste straw chain 34 is pushed down can be changed. That is, the nut 49 and the lower support plate 4
5 and the like, an adjusting mechanism 50 capable of changing and adjusting the amount of pushing down of the waste straw chain 34 is configured so that the interval of the waste straw chain 34 with respect to the holding rail 35 in the working posture can be changed and adjusted freely.

As shown in FIG. 13, the holding rail 35 is composed of a front rail portion 35A and a rear rail portion 35B supported by the front rail portion 35A in a cantilevered rearward direction. Warack Cutter 24
, And the working length of the rear rail portion 35B is configured to be freely switchable between expansion and contraction so that the working straw can be separately supplied to the suction straw dropper 25.

That is, the above-mentioned processing switching mechanism 26 is constituted by a structure in which the holding rail is made telescopic. As shown in detail in FIG. 15, the front and rear rail portions 35 are provided.
A and 35B are formed of a pipe material, and a compression coil spring 51 whose one end is supported at the start end of the front rail portion 35A is inserted into the rear rail portion 35B from the rail start end, and the other end of the compression coil spring 51 is inserted. Is supported at the end of the rear rail portion 35B, and the rear rail portion 35B
Extend from the front rail portion 35A and pull the rear rail portion 35B against the urging force to switch the operation length of the rear rail portion 35B between expansion and contraction.
2 is provided.

As shown in FIG. 14, the cross-sectional shape of the front rail portion 35A is formed into an oblong vertically long ellipse, the cross-sectional shape of the rear rail portion 35B is formed circular, and the terminal portion of the rear rail portion 35B is formed. Is provided with a support portion 53 for lifting and supporting the front rail portion 35A. With the extension of the rear rail portion 35B, the rear rail portion 35B is moved to the front side so that the end portion thereof approaches the waste straw chain 34. It is supported in a state of being inclined with respect to the rail portion 35A.

The front rail portion 35A is connected across the upper ends of a pair of front and rear guide rods 57 slidably supported on a frame and a waste straw cutter case (not shown). The compression coil spring 58 elastically urges the front rail portion 35A toward the exhaust straw chain 34.

The telescopic operating section 52 is provided with an operating lever 55 operated via an operating wire 54 and a lever guide 56 having a plurality of lever engaging portions 56a.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a longitudinal side view of a structure around a combine threshing device.

FIG. 3 is a plan view of the structure around the threshing apparatus with the upper case opened.

FIG. 4 is a perspective view of a waste straw transport device.

FIG. 5 is a longitudinal rear view of the threshing apparatus.

FIG. 6 is a longitudinal sectional side view showing a starting end of a stock transfer mechanism.

FIG. 7A shows the chain raising means and the chain lowering means when the waste straw chain is lowered. FIG. 7B shows the chain raising means and the chain lowering means when the waste straw chain is raised.

FIG. 8 is a cross-sectional plan view of an end portion of the waste straw conveying device.

FIG. 9 is a perspective view showing an end portion of the stock transport mechanism.

FIG. 10 is a diagram showing a positional relationship between an upper case and a waste straw chain in an operating posture.

FIG. 11 is a diagram showing a positional relationship between an upper case and a waste straw chain in a maintenance posture.

12A is a diagram showing a state in which the exhaust straw chain is in an operating position; and FIG. 12B is a diagram showing a state in which the exhaust straw chain is in a maintenance position.

FIG. 13 is a vertical sectional side view of a waste straw processing unit.

FIG. 14 is a vertical cross-sectional view of a waste straw chain and a holding rail.

FIG. 15 is a diagram showing a process switching mechanism.

[Explanation of symbols]

 Reference Signs List 4 threshing device 9 handling cylinder 15 handling opening 18 upper case 18A upper cover 19 lower case 21 discharge stirrer transport mechanism 34 discharge stirrup chain 35 clamping rail 41 chain raising means 42 chain lowering means P handling cylinder axis Q parallel to the handling cylinder axis Axle core

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-312971 (JP, A) JP-A-8-149917 (JP, A) JP-A 3-56331 (JP, U) JP-A 51- 127457 (JP, U) Actually open sho 59-651 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01F 17/02

Claims (3)

(57) [Claims] 1. A waste straw transport mechanism for receiving a waste straw from a threshing device, and sandwiching and transporting the waste straw by a waste straw chain and a sandwiching rail facing the waste straw chain from below, and moving the waste straw transport mechanism upward. A combiner having an upper cover configured to be freely openable and closable from above and below, wherein a drive shaft of the discharge straw transfer mechanism is disposed on a transfer end side, and a transmission shaft for supplying power for driving the handle cylinder is provided with a handle. with deploying parallel to the thresher axis in the opposite side, the transmission shaft and the transmission connected to the drive shaft of the exhaust straw chain, the vertical position change relative to the sandwiching rail exhaust straw chain around the drive shaft Freely configured to act on the exhaust straw chain to move the exhaust straw chain forward.
Biasing force biasing said increased with opening the upper cover with increased biased in a direction away from Kikyoji rail
On mosquito the exhaust straw chain constitute chain lifting means to raise the maintenance position spaced by a predetermined distance upwardly from the clamping rails, against the biasing force to increase urging the exhaust straw chain by
When the bar is closed, as the upper cover is closed,
The working straw chain is pushed down by the upper cover and it works
To the upper cover and to the waste straw chain
A combine having a pressing portion for the chain to constitute a chain lowering means . 2. The threshing apparatus according to claim 1, wherein the upper case supporting the handling cylinder is pivotally supported on the lower case on the side opposite to the handling port so as to be openable and closable about an axis parallel to the axis of the handling cylinder. 2. The combine according to claim 1, wherein said upper case extends to the lower side in the grain stalk transport direction, and said extended portion constitutes said upper cover. 3. A provided with the exhaust straw chain depressed amount changes adjustable adjustment mechanism according to claim 1 or 2 wherein have changed adjustably configure the interval for clamping rails discharge straw chain in the working position Combine.