JPH0640776B2 - Combine harvesting pretreatment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a pre-mowing treatment mechanism that joins a grain culm after mowing to the center of a mowing width, and a grain culm received from this pre-mowing treatment mechanism to a rear threshing unit. The vertical conveyance device that conveys to the device and the vertical conveyance device that pivots up and down around the rear horizontal support shaft adjust the handling depth based on the detection result of the culm length sensor that detects the culm length of the transported culm. A cutting depth adjusting device is provided, and the pre-mowing treatment mechanism is attached to the traveling machine body so as to be able to slide laterally to the left and right, and the vertical transport device is installed so as to be swingable left and right around the rear vertical support shaft. The present invention relates to a combine harvesting pretreatment device having a drive device for laterally laterally sliding or laterally swinging one of the pretreatment mechanism and the vertical conveyance device.

[Conventional technology]

 This kind of combine has the following characteristics.

That is, since the pre-mowing treatment mechanism can be slid laterally, i) When performing unrounded cutting with the uncut side as the left hand, the pre-mowing processing mechanism is extended to the left side to cut the uncut grain and the left crawler. It is possible to prevent the uncut rice culm from being pushed down by the mud pushed out by the crawler by increasing the distance from the traveling device. Ii) When performing the split operation with the uncut culms on the left and right sides. Has a feature that the pre-mowing treatment mechanism is set at an intermediate position between the right and left, the weeding tool is positioned in front of the right crawler traveling device, and the right crawler traveling device does not step on the right uncut grain culm. With the configuration of swinging the vertical transport device to the left and right around the rear fulcrum as the cutting pretreatment mechanism slides laterally, it is possible to smoothly deliver the grain culms fed from the cutting pretreatment mechanism to the vertical transport device. One of the mechanism and the vertical transport device A drive device is provided only for the drive device, and the drive device that operates both in synchronization is also used.

Therefore, in order to operate both by this drive device, a linkage mechanism is required, but conventionally, the guide rod is suspended from the pre-mowing treatment mechanism (17), and this guide rod is attached to the long hole ( It has a function of allowing relative sliding of the reaping pretreatment mechanism and the vertical conveying device in the traveling direction of the traveling body, and the vertical conveying device is inserted through the guide rod along with the lateral sliding of the reaping pretreatment mechanism. Had been configured to swing left and right (see, for example, Japanese Patent Application No. 62-175587).

[Problems to be Solved by the Invention]

However, since the guide rod and the long hole are not in perfect contact with each other and are linked with a slight gap,
The guide rod repeatedly impacts the side edge of the long hole due to the gap during reversal of the pre-mowing treatment mechanism by sliding to the left and right, causing a "drip" at the side edge portion to cause the long hole to move. There is a drawback that it spreads in the lateral direction and the followability of the vertical conveying device is displaced with respect to the lateral sliding amount of the pre-mowing treatment mechanism.

It is an object of the present invention to provide a reaping pretreatment mechanism and a vertical conveyance device which are rationally set so that the preliminary reaping treatment mechanism and the vertical conveyance device can be synchronized with each other without deviation.

[Means for Solving the Problems]

The characteristic configuration according to the present invention is that a vertical guide rod is located on an arc line centered on the rear horizontal support shaft of the vertical conveyance device, and a swing arm that vertically and horizontally swings integrally with the vertical conveyance device. And a moving boss that has one end connected to the swing arm via a sliding boss that allows relative sliding only in its own axial direction and the other end that allows relative movement only in the vertical direction. A relay rod connected to the guide rod via the guide rod, the swinging arm, and the relay rod constitute a linking mechanism for interlocking the reaping pretreatment mechanism and the vertical transfer device. And at least one of the linking parts of the guide rod and the relay rod, the swing arm and the relay rod, and the swing arm and the vertical transfer device. Relative left and right with vertical carrier And that are configured to permit movement, located in, the effects thereof are as follows.

[Work]

Since the relay rod is slidable relative to the guide rod, even if the vertical conveyance device vertically swings around the rear lateral support shaft by the handling depth control, the vertical conveyance device and the pre-mowing treatment mechanism are operated. Will never be removed.

Since the relay rod is linked to the swing arm via the sliding boss, the relative position shift in the machine longitudinal direction between the reaping pretreatment mechanism that slides left and right and the vertical transport device that swings left and right around the rear fulcrum. After absorbing, the link between the left and right movements will not be released.

Due to the characteristic configuration, it is possible to allow the relative movement of the pre-mowing treatment mechanism to the vertical conveyance device, which swings as the left and right slides.

Therefore, the vertical transport device can be swung to the left and right while sliding the reaping pretreatment mechanism in a state where the vertical transport device is set at an arbitrary handling depth position.

The sliding boss and the swinging arm, and the moving boss and the guide rod, which are in close contact with each other and can be displaced relative to each other by the structure such as the guide rod, have no looseness in their interchangeable portions. .

〔The invention's effect〕

As a result, the vertical conveying device can be made to follow without displacement as the cutting pretreatment mechanism slides (or the cutting pretreatment mechanism can be made to follow by swinging the vertical conveying device),
The transfer can be smoothly carried out, and since the sliding is performed in the close fitting state, there is no rattling when the cutting pretreatment mechanism is reversed to the left and right, and stable performance can be maintained for a long time.

〔Example〕

As shown in FIG. 7, the combine is a raising device (2) for raising the planted culm sown by the weeding tool (1), and a mowing device (3) for cutting the culm after the raising. , A packer (4) for focusing the cut grain culms in the center of the cutting width, a vertical pre-treatment device comprising a vertical transport device (6) for transporting the focused grain culms toward the rear threshing device (5), and a vertical transport device The driver's seat (7) is arranged laterally of (6).

The weeding tool (1), the raising device (2), the mowing device (3), the packer (4), etc. are collectively referred to as a mowing pretreatment mechanism (17), and the mowing pretreatment mechanism (17) The lateral sliding structure for the traveling machine body (9) will be described.

As shown in FIGS. 3 and 4, a vertically oriented frame (10) is erected at the front end of the traveling body (9).
A lateral transmission case (11) is rotatably supported on the upper end of (0) so as to be rotatable around its horizontal axis. The main frame (12) in the forward-backward orientation of the fuselage is fixed to the outer peripheral surface of the lateral transmission case (11), and the transmission shaft (13) and the main frame (12) as the rear lateral support shaft of the lateral transmission case (11). The transmission shaft (14) is connected with the bevel gear mechanism (15), and the sideways transmission case (11)
An end input pulley (8) of the transmission shaft (13) receives power from an engine (not shown) and transmits the power to the in-mainframe transmission shaft (14). A support case (16) is provided at the tip of the main frame (12), and a mowing pretreatment mechanism (17) is attached to the support case (16).

The mounting structure of the pre-mowing treatment mechanism (17) in the tip support case (16) will be described. As shown in FIG. 3 and FIG. 4, at the main frame (12) mounting portion of the tip support case (16), a sliding shaft (18) in a posture along the lateral direction of the machine body has its own axial center (X). Bearings are supported so that they can slide in any direction, and a passive bevel gear (19) and a drive bevel gear (20) are fixed to the tip of the main frame transmission shaft (14) at the intermediate part formed in a hexagonal shape, and the sliding shaft (18 ) Is formed. This passive bevel gear (19) is externally fitted to the hexagonal intermediate portion of the sliding shaft (18) so as to be integrally rotatable, and the bearing (21)
It is rotatably supported by the tip end support case (16) through the shaft, and allows the sliding shaft (18) to slide laterally.
The left and right end portions of the sliding shaft (18), which project left and right from the tip support case (16), respectively, have a bevel gear transmission mechanism (22) for supplying power to the raising devices (2), (2), respectively. (22) is provided.

A pipe-type first sliding frame (23) is provided on the front side of the sliding shaft (18) via bushes (24) and (24) to support the tip support case (1).
6) It is pivotally supported by 6) so that it can slide laterally, and the tip support case
Left and right support frames (25), (25), to which the left and right weeding tool support rods are fixed, are connected and fixed to the left and right ends projecting from (16).
In addition, the second sliding frame (23) has a second
A sliding frame (26) is laid across the left and right support frames (25), (25), and a holder having a substantially U-shaped cross section that extends further forward from the front end of the support case (16) ( 27)
Inserted from the front opening side and loosely supported, the holder (27)
It is configured to be able to slide laterally relative to. Further, a central weeding tool support rod (32) is extended forward from the supporting portion of the second sliding frame (26) engaged and supported by the holder (27).

Next, the lateral sliding drive device of the pre-mowing treatment mechanism (17) will be described. As shown in FIG. 3, the tip support case (16)
The screw shaft (28) is inserted into the left and right sideways, and a top member (29) acting on the screw shaft (28) is provided on the right side surface of the tip support case (16). A drive motor (30) as a drive device that is drivingly connected to the base end portion of the right support frame (25) via the screw shaft (28) through a coupling (31) to rotate and drive the screw shaft (28). It is installed. The drive motor (30) rotationally drives the screw shaft (28) to laterally slide the tip support case (16) and, in turn, the reaping pretreatment mechanism (17) left and right.

Next, the handling depth adjusting device will be described in detail. As shown in FIG. 1, the vertical transfer device (6) is composed of a tip locking transfer device (6A) and a stock holding device (6B), and is vertically rocked around the axis of the lateral transmission case (11). And the transmission shaft (3
3) It can swing left and right around the axis. A motor (34) with a worm reducer is attached to the main frame (12), and a 1/4 circle gear (36) is attached via a bracket (35) to the motor output shaft pinion (37) and 1 / 4 circle gear (36)
Is engaged and the 1/4 gear (36) swings up and down around the lateral axis (Y), and at the lateral axis (Y) position, the 1/4 gear (36)
A drive arm (39) that can be integrally swung with is connected to the tip locking transfer device (6A) case (46) via a connecting rod (38), and the vertical transfer device (6) is configured to be vertically swingable. ing.

On the other hand, as shown in FIG. 7, a pair of upper and lower parts are brought into contact with a suspension frame (40) provided around the upper part of the transport path to suspend and support the sandwiching rail for the stock carrier transporting device (6B). A type sensor is provided and configured as a culm length sensor (41) for the conveyed grain culm sent by the vertical conveying device (6). In other words, the vertical conveyor (6) is vertically swung so that the tip of the conveyed grain culvert just passes through the upper and lower intermediate positions of the double-contact type sensor, and according to the culm length of the conveyed grain culm, the stock holding device (6B) The holding depth can be controlled so that the holding position is fixed from the tip to a predetermined length for the threshing device (5).

Next, the horizontal swing structure of the vertical transport device (6) will be described.

The vertical transmission case (42) is fixed to the horizontal transmission case (11) so as to support the vertical transmission device transmission shaft (33), and the stock carrier holding and conveyance device is provided at an intermediate position in the vertical direction of the transmission shaft (33). A drive sprocket (43) and a tip sprocket transporting device drive sprocket (44) are fitted to the upper end of the drive sprocket (43) so as to be integrally rotatable.
The upper half of the vertical transmission case (42) is a transmission shaft for a vertical conveyance device.
A wall surface is provided only on the rear side of (33), and a pivoting frame (45) that can be swung to the left and right is positioned on the front side, which is the space, and the frame (45) is attached to the transmission shaft for the vertical conveyance device. The bearing is supported by (33).

With respect to this rotating frame (45), the tip locking transfer device case (46) and the stock carrier holding transfer device case (47) are attached, and both cases (46) and (47) are attached to the intermediate support frame ( 48)
Connected with the tip, the tip locking transfer device (6A) and the stock holding device
It is configured so that it can swing to the left and right integrally with (6B).

On the other hand, as shown in FIG. 1, the left and right support frames (25), (2
5) To raise and lower the raising case (49), (49) for the raising device (2) to slide laterally together with the right side, the conveyor belt with right locking claw (52) and the right packer are formed. A vertical support shaft (51), which is rotatably fitted to (4A), is raised rightward through a horizontal rod (58) and is suspended and supported by a transmission case (49).
The right packer (4A) is rotationally driven by constant occlusion with the left packer (4B), and the conveyor belt with locking claws (52) interlockingly connected to the right packer (4A) via the connecting cylindrical case (53). ) Supplying rotational drive force to the drive pulley.

The linkage mechanism (50) for interlocking the reaping pretreatment mechanism (17) and the vertical transfer device (6) will be described. As shown in FIGS. 1 and 2, the linkage mechanism (50) includes a guide rod (5
5), a swing arm (57) that swings up and down and left and right integrally with the vertical transfer device (6), and a relay rod (59) that connects the guide rod (55) and the swing arm (57). Consists of. The guide rod (55)
Is formed in a curved shape so as to be positioned on an arc line centered on the rear horizontal support shaft (13) of the vertical transfer device (6), and the upper end of the bracket is raised to the right to extend from the transmission case (49) to the bracket (54 ) And the lower end of the conveyor belt with right locking claw (52)
It is attached and formed so as to be engaged with the protrusion of the upper cover (56). The swinging arm (57) is a case (46) for holding the tip end of the conveying device.
It is fixed as a bracket that is integrated with, and has a sliding boss (61) fixed at its tip. One end of the relay rod (59) is externally fitted to the guide rod (55) to form a moving boss (59a) that slides in the axial direction of the guide rod, and the rear end is formed from the moving boss (59a). A rod portion (59b) extending to the sliding boss (61) is attached to the sliding boss (61) so as to be relatively slidable in the axial direction of the rod portion (59b).

A transfer boss (59a) at one end of the relay rod (59) is externally fitted to the guide rod (55) so as to be capable of relative left and right swing around the axis of the guide rod (55). Therefore, in this linking portion, relative lateral swing of the cutting pretreatment mechanism (17) that slides laterally and the vertical transfer device (6) that swings around the rear vertical axis is allowed.

Since the vertical transfer device (6) can swing left and right around the rear vertical support shaft (33), the delivery end on the vertical transfer device (6) side with respect to the feed chain (63) changes its interval. Therefore, the pre-mowing treatment mechanism (17) can be slid left and right so as to change the interval according to the culm length.

[Another embodiment]

(A) The drive device (30) may drive the vertical transfer device (6) side.

(B) As described above, in the linking portion between the moving boss (59a) of the relay rod (59) and the guide rod (55),
The rocking arm is replaced by a rocking arm in place of the one configured to allow relative left and right rocking of the mowing pretreatment mechanism (17) and the vertical transfer device (6).
At either the linking part of the (57) and the relay rod (59) or the linking part of the swing arm (57) and the vertical transfer device (6), the pre-mowing treatment mechanism (17) and the vertical transfer device ( It may be configured to allow left and right swing relative to 6).

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a combine harvesting pretreatment device according to the present invention. Fig. 1 is a side view showing a linkage mechanism between a harvesting pretreatment mechanism and a vertical transport device, and Fig. 2 is a harvesting pretreatment mechanism and vertical transport device. FIG. 3 is an enlarged plan view showing an interlocking mechanism with the device, FIG. 3 is a cross-sectional plan view showing a lateral sliding structure of the pre-mowing treatment mechanism, FIG. 4 is a vertical sectional side view in FIG. 3, and FIGS. FIG. 7 is a plan view showing the linked state of the vertical conveyance device swinging as the pre-mowing treatment mechanism slides laterally, and FIG. 7 is an overall side view. (5) …… Rear threshing device, (6) …… Vertical transfer device, (9) …… Traveling machine, (13) …… Rear lateral support shaft, (17) …… Mowing pretreatment mechanism, (30)… … Drive device, (50) …… Coupling mechanism, (55) …… Guide rod, (57) …… Swing arm, (59) …… Relay rod, (59a) …… Movement boss, (61) ...... Sliding boss.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Minor Hiraoka 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Works (72) Inventor Kazuo Kobayashi 64, Ishizukita-machi, Sakai City, Osaka Kubota Iron Works Co., Ltd. Sakai Factory

Claims (1)

[Claims] 1. A pre-mowing treatment mechanism (17) for joining the grain culms after mowing to the center of the mowing width, and a grain culm received from the pre-mowing treatment mechanism (17) toward the rear threshing device (5). Vertical transport device for transport
(6) and a vertical transfer device (6) pivotally supported so that it can swing up and down around a rear horizontal support shaft (13). A culm length sensor for detecting the culm length of a transported culm.
(41) is provided with a handling depth adjusting device for adjusting the handling depth based on the detection result, and the cutting pretreatment mechanism (17) is attached to the traveling machine body (9) so as to be laterally slidable, The vertical transfer device (6) is installed so as to be able to swing left and right around a rear vertical support shaft, and either one of the pre-mowing treatment mechanism (17) and the vertical transfer device (6) is laterally slid or oscillated. A combine harvesting pretreatment device provided with a drive device (30) for performing a motion, wherein the drive device (30) laterally slides or laterally oscillates in response to one sideways or laterally oscillated motion. A linkage mechanism (50) for interlocking the other to slide laterally is provided, and this linkage mechanism (50) is used for the rear horizontal support shaft (13) of the vertical conveyance device (6).
The vertical guide rod (5
5), a swing arm (57) that swings vertically and horizontally integrally with the vertical transfer device (6), and a sliding boss (61) that allows one end to relatively slide only in the axial direction of itself. Through the swing arm (57)
And a relay rod (59) connected to the guide rod (55) through a moving boss (59a) which allows the relative movement only in the vertical direction, and the other end of the guide rod. (55) and the relay rod (59) linkage portion, the swing arm (57) and the relay rod (59) linkage portion, and the swing arm (57) and the vertical transfer device
It is configured to allow relative lateral swing between the vertical transport device (6) and the reaping pretreatment mechanism (17) in at least one linking part of the connecting parts with (6). Combine harvesting pretreatment device.