JPH0510044B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention includes a pre-harvesting treatment mechanism and a vertical conveying device for conveying grain culms received from the pre-harvesting treatment mechanism toward a rear threshing device. The present invention relates to a reaping pretreatment device for a combine harvester, which is equipped with a handling depth adjustment device that adjusts the handling depth by vertically swinging the conveying device around a rear horizontal support shaft.

[Conventional technology]

As a pre-harvesting treatment device for this type of combine harvester,
There is a method proposed by the present applicant (for example, Japanese Utility Model Application No. 61-52357), but this method only describes a handling depth adjustment device.

By the way, as recently proposed in Japanese Patent Application No. 62-115372, the reaping pretreatment mechanism can be moved laterally,
When mowing in a circular motion with the uncut side in the left hand, the pre-harvesting mechanism is extended to the left, and the distance between the uncut grain culm and the left crawler traveling device is increased, so that the mud pushed out by the crawler is If you want to suppress the damage caused by pushing down the uncut grain culms, and perform splitting work with the uncut grain culms located on both the left and right sides, set the pre-harvesting mechanism to the middle position between the left and right, and use the right crawler. Position the weeding tool in front of the traveling device to prevent the right crawler walking device from stepping on the uncut grain culm on the right side.
There is a type of pre-reaping treatment mechanism that can be moved laterally, and it has been proposed that a combine harvester should have both the lateral movement structure of the pre-reaping treatment mechanism and the structure of a handling depth adjustment device.

[Problem that the invention seeks to solve]

However, if only the pre-harvesting treatment mechanism is moved horizontally, a horizontal shift will occur between the vertical conveyance device that receives the grain culm from the pre-harvesting treatment mechanism and the pre-harvesting mechanism, and the grain culm will be moved between the two. Not only is the transfer not going well, but the operating directions of the vertical conveyance device that swings up and down to control the handling depth and the reaping pretreatment mechanism that slides horizontally are perpendicular to each other and are significantly different, so we need to make some improvements. was necessary.

The purpose of the present invention is to provide a vertical conveyance device with a handling depth adjustment device and a new structure that supports the lateral movement structure of the reaping pretreatment mechanism, and to provide a mechanism that can be configured more easily. It is in the point of doing.

[Means for solving problems]

Characteristic configurations according to the present invention include: the reaping pre-processing mechanism is attached to the traveling machine body so as to be movable laterally to the left and right, and the vertical conveyance device is installed so as to be swingable from side to side around the rear vertical support axis; and the reaping process. A lateral movement device is provided in either the mechanism or the vertical conveyance device to perform left and right lateral movement, and the mechanism and the vertical conveyance device are provided with a lateral movement device for horizontally moving the mechanism and the vertical conveyance device, and in order to horizontally move in the same direction corresponding to one side being moved laterally by the operation of the lateral movement device. The interlocking mechanism that interlocks the other is interlinked via a flexible mechanism that allows vertical swinging of the vertical conveyance device, and its effects are as follows.

[Effect]

(B) By configuring the vertical conveyance device to be able to swing from side to side, as in the characteristic configuration, it is possible to move the inlet of the vertical conveyance device horizontally in correspondence with the grain culm discharge port of the pre-harvesting treatment mechanism. This makes it possible to suppress lateral misalignment at the transfer point between the reaping pretreatment mechanism and the vertical conveyance device.

(b) By operating the lateral movement device provided for one of the vertical conveyance device and the reaping pretreatment mechanism, the other can be made to follow in the same direction via the linkage mechanism.

〔Effect of the invention〕

As in the effect (a), it is possible to prevent the transfer of grain culms from the pre-harvesting treatment mechanism to the vertical conveyance device from being deteriorated by the lateral sliding of the pre-harvesting mechanism.

It is also possible to move the pre-reaping treatment mechanism and the vertical conveyance device laterally using a dedicated lateral movement device, but in this case, an extra lateral movement device would be required, and it would be difficult to operate both in synchronization. However, in the case of the present invention, a simple pipe-shaped frame (hanging Equipped with a linkage mechanism using a rod (rod), it can be easily moved laterally, and the linkage mechanism also automatically handles the horizontal movement of the reaping pre-processing mechanism and vertical conveyance device at the stop position. There is no need to provide a control device for this purpose, unlike when separate lateral movement devices are provided.

Moreover, since the linkage mechanism links the reaping pre-processing mechanism and the vertical conveyance device via the flexibility mechanism, there is no obstacle to vertical swinging during the handling depth adjustment operation of the vertical conveyance device, and the reaping It has now been possible to effectively coexist the lateral movement function and the handling depth adjustment function of the pretreatment mechanism.

〔Example〕

As shown in FIG. 7, the coumbine includes a pulling device 2 that pulls up the planted grain culm that has been divided by the weeding tool 1, a reaping device 3 that reaps the grain culm after being pulled up, and a reaping device 3 that reaps the harvested grain culm. A packer 4 that collects grains in the center of the cutting width, and a vertical conveyor device 6 that transports the collected grain culms toward the rear threshing device 5.
It is configured to include a reaping pre-processing device consisting of the like, and a driver's seat 7 disposed on the lateral side of the vertical conveyance device 6.

The above-mentioned weeding tool 1, pulling device 2, reaping device 3, pruner 4, etc. are collectively referred to as the reaping pretreatment mechanism 17.
The lateral movement structure of this pre-reaping treatment mechanism 17 with respect to the traveling machine body 9 will be described. As shown in FIGS. 3 and 4, a vertical frame 10 is erected at the front end of the traveling body 9, and this vertical frame 1
A horizontal transmission case 11 is rotatably supported on the upper end of the transmission case 11 around its horizontal axis. The main frame 12 in the longitudinal direction of the aircraft body is fixed to the outer peripheral surface of the horizontal transmission case 11, and the transmission shaft 13 as a rear horizontal support shaft of the horizontal transmission case 11 and the transmission shaft 14 of the main frame 12 are connected by a bevel gear mechanism 15. Connect the horizontal transmission case 11 and the transmission shaft 1
It is configured to receive power from an engine (not shown) at the end input pulley 8 of No. 3 and transmit it to a transmission shaft 14 in the main frame. The main frame 12
A support case 16 is provided at the tip of the support case 16, and a reaping pretreatment mechanism 17 is attached to the support case 16.

Reaping pre-treatment mechanism 1 in this tip support case 16
The mounting structure of No. 7 will be explained. As shown in FIGS. 1 and 2, a sliding shaft 18 that is aligned along the width direction of the fuselage is supported by a bearing at the attachment part of the main frame 12 of the tip support case 16 so that it can slide in the direction of its own axis X. At the same time, a passive bevel gear 19 is fixed to the hexagonal intermediate portion, and a drive bevel gear 20 is fixed to the tip of the main frame transmission shaft 14, thereby forming a transmission structure to the sliding shaft 18.
This passive bevel gear 19 is fitted onto the hexagonal middle part of the sliding shaft 18 so that it can rotate integrally with the sliding shaft 18, and is connected to the tip support case 19 via a bearing 21.
The shaft 18 is pivoted so as to be rotatable only, and is configured to allow the sliding shaft 18 to slide laterally. Bevel gear transmission mechanisms 22, 22 for supplying power to the lifting devices 2, 2 are provided at the left and right ends of the sliding shaft 18, projecting left and right from the tip support case 16, respectively.

On the front side of the sliding shaft 18, a pipe-type first sliding frame 23 is pivotally supported by the tip support case 16 via bushes 24, 24 so as to be able to slide laterally, and protrudes from the tip support case 16. Left and right support frames 25, 25 to which left and right weeding tool support rods are fixed are connected and fixed to the left and right ends. Furthermore, a second sliding frame 26 is installed further forward than the first sliding frame 23 and spans the left and right support frames 25, 25, and extends further forward from the front end of the support case 16. It is inserted into a holder 27, which has a substantially U-shaped cross section, from the front opening side and is supported with a loose fit, and is configured to be able to slide laterally relative to the holder 27. Further, a central weeding tool support rod 32 extends forward from the support portion of the second sliding frame 26 that is engaged and supported by the holder 27.

Next, the lateral movement device of the reaping pretreatment mechanism 17 will be explained. As shown in FIG. 3, a screw shaft 28 is inserted into the tip support case 16 in a horizontal direction, and a piece member 29 that acts on the screw shaft 28 is provided on the right side of the tip support case 16. A drive motor 30 is attached to the base end of the right support frame 25, which is transmission connected to the screw shaft 28 via a coupling 31 and rotates the screw shaft 28. In this way, the screw shaft 28, the block member 29,
A lateral movement device is constituted by the drive motor 30, and the drive motor 30 rotationally drives the screw shaft 28, thereby making it possible to move the tip support case 16 and, in turn, the reaping pretreatment mechanism 17 laterally from side to side. -ing

Next, the handling depth adjustment device will be described in detail. Fifth
As shown in the figure, the vertical conveyance device 6 includes a tip locking conveyance device 6A and a stock clamp conveyance device 6B, and is capable of vertically swinging around the axis of the horizontal transmission case 11. Transmission shaft 33, which serves as a rear shaft support vertically raised from 11, can swing left and right around the axis. A motor 34 with a worm reducer is attached to the main frame 12, and a quarter circle gear 36 is attached via a bracket 35, and the motor output shaft pinion 37 and the quarter circle gear 36 are engaged with each other. 1/ around horizontal axis Y
While the 4 gears 36 swing up and down, the drive arm 39, which can swing together with the 1/4 gear 36 at the horizontal axis Y position, is connected to the case 46 of the ear locking and conveying device 6A via the connecting rod 38, and vertically moves. The conveying device 6 is configured to be able to swing up and down.

On the other hand, as shown in FIG. 5, a pair of upper and lower contact sensors are installed on a hanging frame 40 that is provided around the upper part of the conveyance path to suspend and support the clamping rail for the stock clamping and conveying device 6B. , is configured as a culm length sensor 41 for the conveyed grain culm provided in the vertical conveyance device 6. In other words, the vertical conveying device 6 is vertically swung so that the tip of the grain culm to be transported passes exactly between the upper and lower intermediate positions of both contact type sensors, and the clamping position of the stock clamping and conveying device 6B is set at a fixed position from the tip of the grain depending on the length of the grain culm. The handling depth can be controlled so that the length of input into the threshing device 5 becomes a set length.

Next, the left-right swing structure of the vertical conveyance device 6 will be explained.

A vertical transmission case 42 is fixed to the horizontal transmission case 11 to support the transmission shaft 33 for the vertical conveyance device, and a drive sprocket 43 for the stock clamping and conveyance device is provided at the vertical intermediate position of the transmission shaft 33, and a tip is provided at the upper end. A drive for the locking and conveying device is fitted on a sprocket 44 so as to be rotatable therewith. The upper half of the vertical transmission case 42 is a transmission shaft 33 for a vertical conveyance device.
A wall is provided only on the rear side of the frame, and a rotating frame 4 that can swing left and right is placed on the front side of the space.
5 is positioned, and its frame 45 is supported by a bearing on the transmission shaft 33 for the vertical conveyance device.

With respect to this rotating frame 45,
7 is attached, and both cases 46 and 47 are connected by an intermediate support frame 48, so that the ear tip locking and conveying device 6A and the stock head clamping and conveying device 6B are integrally configured to be swingable from side to side.

On the other hand, as shown in FIG. 5, the lifting transmission cases 49, 49 for the lifting device 2 are formed to stand up on the left and right so that they can slide sideways integrally with the left and right support frames 25, 25, and are provided with right locking claws. Conveyor belt 52
A vertically oriented support shaft 51, on which the right gear 4A and the right gear 4A are rotatably loosely fitted, is pulled up to the right via a horizontal rod 58 and is suspended and supported by the transmission case 49. The right police car 4A is rotationally driven by constant engagement with the left police car 4B, and rotational driving force is applied to a driving pulley of a conveyor belt 52 with a locking claw, which is interlocked and connected to the right police car 4A via a cylindrical case 53. is supplied.

A hanging rod 5 as a linkage mechanism is attached to the right-lift transmission case 49 through the bracket 54 with its upper end welded to the bracket 54.
5 has its lower end locked to a protrusion of the upper cover 56 of the right conveyor belt 52 with a locking claw to regulate its position, and is formed into an arc shape centered on the rear horizontal support shaft 13 of the horizontal transmission case 11. ing. In other words, the hanging rod 55 penetrates and engages the locking bracket 57 extending from the ear locking and conveying device case 46 in the middle thereof, and the hanging rod 55 engages with the locking bracket 57 extending from the ear locking and conveying device case 46 .
As the transport device 7 moves horizontally and horizontally, the vertical transport device 6 is moved horizontally as a unit, and the vertical conveyance device 6 is swung horizontally via the locking bracket 57. Therefore, since the hanging rod 55 is engaged with the vertical conveyance device 6, it is formed into an arc shape to allow vertical swinging for controlling the handling depth as described above, and is also attached to the locking bracket 57. A hole 50 is formed through which a hanging rod 55 is inserted, and as shown in FIG. 6, the connecting rod 38 for vertically swinging the vertical transport device 6 can also swing horizontally along with the tip-locking transport device case 39. Here, the hole 50 to be inserted is referred to as a flexible mechanism that allows the vertical conveyance device 6 to swing up and down. However, the hole 50 through which it is inserted is formed into a long hole in consideration of the back and forth misalignment of the locking bracket 57 that swings from side to side with respect to the hanging rod 55 that slides laterally.

[Another example]

(a) The lateral movement device that laterally moves the reaping pretreatment mechanism 17 and horizontally moves the vertical conveyance device 6 by swinging left and right may be one that operates the vertical conveyance device 6.

(b) As the lateral movement device, a hydraulic cylinder or other device other than an electric motor may be used.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the pre-reaping treatment device for a combine harvester according to the present invention, and FIG. 1 is an overall plan view showing the pre-reaping treatment mechanism moved laterally to the right end, and FIG. 2 is an overall plan view showing the pre-reaping treatment mechanism moved to the left end. 3 is a cross-sectional plan view showing the lateral movement structure of the pre-reaping treatment mechanism; FIG. 4 is a vertical side view corresponding to FIG. 3; and FIG. 5 is the pre-reaping treatment mechanism. FIG. 6 is a front view showing the horizontal swing state of the connecting rod for handling depth as the vertical transport device swings left and right, and FIG. 7 is an overall side view. It is. 5...Rear threshing device, 6...Vertical conveyance device, 9...
... Traveling machine body, 13 ... Rear horizontal support shaft, 17 ... Reaping pre-processing mechanism, 28, 29, 30 ... Lateral movement device,
55...linkage mechanism, 50...accommodation mechanism.

Claims (1)

[Claims] 1 A pre-harvesting treatment mechanism 17 and a vertical conveyance device 6 for conveying grain culms received from the pre-harvest treatment mechanism 17 toward the rear threshing device 5 are provided, and the vertical conveyance device 6 is vertically moved around the rear horizontal support shaft 13. A reaping pretreatment device for a combine that is equipped with a handling depth adjustment device that adjusts the handling depth by swinging, and the reaping pretreatment mechanism 17 is attached to the traveling machine body 9 so as to be movable laterally to the left and right, a lateral movement device 28, which is installed so that the vertical conveyance device 6 can be oscillated and horizontally moved left and right around a rear vertical support shaft, and which causes either the reaping pretreatment mechanism 17 or the vertical conveyance device 6 to move horizontally from side to side; 29,
30, and a linkage mechanism 55 that interlocks one side moved laterally by the operation of the lateral movement devices 28, 29, and 30, and a flexible mechanism 50 that allows the vertical movement of the vertical conveyance device 6. The pre-harvesting treatment device of the combine is linked via the.