JPH06197616A - Combine harvesting pretreatment device - Google Patents

Abstract

(57) [Abstract] [Purpose] The pre-mowing treatment mechanism is slidably supported in the left-right direction of the machine body, and the vertical conveying device from the pre-mowing treatment mechanism to the threshing feed chain is linked to the slide of the pre-mowing treatment mechanism to thresh. In a combine configured to swing right and left around a rear fulcrum on a feed chain side, a grain culm can be smoothly transferred from a vertical conveying device to a threshing feed chain. [Configuration] Threshing feed chain 31 from the vertical conveyor 6
The stock element guide rod 34 is extended in a cantilever manner toward the front end of the stock element guide rod 34, and the rear half portion of the stock element guide rod 34 is formed in a substantially arc shape centering on the rear fulcrum P on which the vertical transport device 6 swings.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pre-cutting mechanism for raising and concentrating mowing culms in the center of the cutting width, a vertical conveying device for receiving the concentrated culms and conveying them toward a threshing device, and a vertical conveying device in a horizontal position. From the vertical transfer device to the threshing feed chain in a cantilevered manner, to receive and support the root side of the transfer grain culm that is fed into the threshing device and guide it to the starting end of the threshing feed chain. The present invention relates to a combine harvester pre-treatment device provided with a stock source guide rod.

[0002]

2. Description of the Related Art A conventional stock yuan guide rod has been extended substantially linearly from a vertical conveying device toward a starting end of a threshing feed chain (for example, Japanese Utility Model Laid-Open No. 60-151329).

[0003]

The shape of the stock guide rod is set on the premise that the pre-mowing treatment mechanism does not laterally slide with respect to the threshing device. Accordingly, when the vertical conveying device oscillates left and right around the rear fulcrum in synchronization, the vertical conveying device is further swung to the left from the state in which the tip of the stock guide rod is positioned up to the threshing feed chain starting end. And with the tip of the strainer guide rod largely bulging laterally outward, the relative attitude of the strainer guide rod with respect to the threshing feed chain starting end may change, and it may come into contact with this threshing feed chain starting end,
On the other hand, if it is installed in a state where it does not contact, if the vertical transport device swings away from the threshing feed chain, the stock-source guide rod will be far away from the start end of the threshing feed chain. It was not possible to successfully transfer the grain culm to the starting end of the threshing feed chain. It is an object of the present invention to provide a grain culm that can be smoothly transferred to a threshing feed chain even when the vertical conveying device is laterally oscillated due to the lateral sliding of the reaping pretreatment mechanism.

[0004]

In the characteristic structure according to the present invention, at least a portion of the stock guide rod for transferring grain culms is formed in a substantially circular arc shape around a rear swing fulcrum of the vertical conveying device. And its effects are as follows.

[0005]

[Action]

(A) That is, as shown in FIG. 1, the grain culm delivery portion 34a of the stock guide rod 34 is substantially aligned with the starting end of the threshing feed chain in a state where the vertical conveying device 6 swings away from the threshing feed chain 31. If the vertical transfer device 6 swings in the direction approaching the threshing feed chain 31, if it is installed in parallel and spaced apart from the starting end portion by a predetermined interval, the grain culm delivery portion of the stocker guide rod 34 Since the base end portion sequentially follows the point where the tip end portion is located, the distance between the stocker guide rod 34 and the threshing feed chain start end portion is constant.

(B) Moreover, since the stock element guide rod 34 has an arc shape, even if the vertical conveying device 6 swings toward the threshing feed chain 31, the posture is set along the threshing feed chain 31. Therefore, the lateral extension can be suppressed.

[0007]

EFFECTS OF THE INVENTION From the action (a), the threshing feed can be performed as in the action (b) without impairing the smoothness of the delivery from the vertical transport device to the threshing device, even if the vertical transport device swings to the left and right. Without overhanging laterally outward of the chain,
There is also no contact with high ridges.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 5, the combine has a raising device 2 for raising the planted culm sown by the weeding tool 1, a mowing device 3 for mowing the grain culm after the raising, and a cutting width for the mowing grain culm. A mowing pretreatment device including a packer 4 that focuses on the center of the, a vertical transport device 6 that transports the focused grain culm toward the rear threshing device 5, and the like.
The driver's seat 7 is provided on the lateral side of the vertical transfer device 6.

The weeding tool 1, the raising device 2, the mowing device 3, the packer 4 and the like are collectively referred to as a mowing pretreatment mechanism 17, and a lateral sliding structure of the mowing pretreatment mechanism 17 with respect to the traveling machine body 9 is described. explain. As shown in FIG. 3, a vertically oriented frame 10 is erected at the front end of the traveling machine body 9, and a horizontally oriented transmission case 11 is pivotally supported at the upper end of the vertically oriented frame 10 so as to be rotatable around its horizontal axis. . The main frame 12 in the front-back direction of the machine is fixed to the outer peripheral surface of the lateral transmission case 11, and the transmission shaft 13 as the rear lateral support shaft of the lateral transmission case 11 and the transmission shaft 14 of the main frame 12 are connected by the bevel gear mechanism 15. It is configured to be connected and receive power from the engine (not shown) at the end input pulley 8 of the lateral transmission case 11 transmission shaft 13 to transmit the power to the in-mainframe transmission shaft 14. Main frame 1
A support case 16 is provided at the tip of 2, and a mowing pretreatment mechanism 17 is attached to the support case 16.

The mounting structure of the cutting pretreatment mechanism 17 in the tip support case 16 will be described. As shown in FIGS. 1 and 2, a slide shaft 18 having a posture along the lateral direction of the machine is bearing-supported at a mounting portion of the main frame 12 of the tip end support case 16 so as to be slidable in its own axis X direction. With
A passive bevel gear 19 and a drive bevel gear 20 are fixed to the tip of the main frame transmission shaft 14 at an intermediate portion formed in a hexagonal shape to form a transmission structure to the sliding shaft 18.
The passive bevel gear 19 is externally fitted to the hexagonal intermediate portion of the sliding shaft 18 so as to be integrally rotatable, and is also rotatably supported by the tip support case 16 via a bearing 21 so as to be rotatable. It is configured to allow lateral sliding. Bevel gear transmission mechanisms 22 and 22 for supplying power to the raising devices 2 and 2 are provided at the left and right end portions of the sliding shaft 18 that project to the left and right from the tip support case 16.

On the front side of the sliding shaft 18, a pipe-type first sliding frame 23 is laterally slidably supported by the tip supporting case 16 via bushes 24, 24, and the tip supporting case 16 is also supported. The left and right supporting frames 25, 25 to which the left and right weeding tool supporting rods are fixed are connected and fixed to the left and right protruding ends.

Further, a second sliding frame 26 is provided on the front side of the first sliding frame 23, and a second sliding frame 26 is provided on the left and right support frames 2.
The support case 16 is installed over 5,25
The holder 27, which has a substantially U-shaped cross section and extends forward from the front end, is loosely fitted and supported from the front opening side and is relatively slidable relative to the holder 27. Further, a central weeding tool support rod 32 extends 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, a screw shaft 28 is inserted laterally into the tip support case 16, and a top member 29 that acts on the screw shaft 28 is provided on the right side surface of the tip support case 16. The right support frame 2
A drive motor 30 is attached to the base end of the drive shaft 5, and is connected to the screw shaft 28 via a coupling 31 to drive the screw shaft 28 for rotation. This drive motor 3
The screw shaft 28 can be driven to rotate by 0 to laterally slide the tip support case 16 and further the cutting pretreatment mechanism 17 left and right.

Next, the horizontal swing structure of the vertical transport device 6 will be described. A vertical transmission case 42 is fixed to the horizontal transmission case 11 so as to support the vertical transfer device transmission shaft 33, and a drive sprocket 43 for a stock carrier holding and transfer device is provided at an upper and lower intermediate position of the transmission shaft 33 and a tip is provided at an upper end thereof. The locking conveyance device drive sprocket 44 is integrally rotatably fitted. The upper half of the vertical transmission case 42 is provided with a wall surface only on the rear side of the vertical transfer device transmission shaft 33.
5 is positioned so that the frame 45 is supported on the vertical transfer device transmission shaft 33 as a bearing.

With respect to the rotating frame 45, the tip locking transporting device case 46 and the stock carrier holding transporting device case 47 are provided.
And the cases 46 and 47 are connected by an intermediate support frame 48, and the tip-end locking transfer device 6A and the stock holding device 6B are integrally formed as the rear fulcrum P for the vertical transfer device transmission shaft 33. It is configured so that it can swing to the left and right around the axis.

On the other hand, as shown in FIG. 4, the raising transmission cases 49, 49 for the raising device 2 are formed so as to be laterally slid integrally with the left and right support frames 25, 25, and are formed rightward and leftward, and are locked to the right. Conveyor belt with claw 52 and right packer 4A
A vertical support shaft 51, which is rotatably fitted in and, is raised to the right through a horizontal rod 58 and is suspended and supported by a transmission case 49. The right packer 4A is rotationally driven by constant engagement with the left packer 4B, and
The rotation driving force is supplied to the driving pulley 52 with a locking claw, which is interlocked and coupled via the coupling cylindrical case 53, to the driving pulley.

A suspending rod 55 as a linking mechanism, which is attached to the right pulling up transmission case 49 with its upper end welded to the bracket 54 through the bracket 54, has a lower end which is a conveyor belt with a right locking claw. The position is regulated by being locked by the protrusion of the upper cover 56 of 52, and is formed in an arc shape centered on the rear lateral support shaft 13 of the lateral transmission case 11. In other words, the hanging rod 55 is engaged in a state of penetrating the locking bracket 57 extending from the tip locking transporting device case 46 in the middle thereof, and the pre-cutting mechanism 1
As the slide rail 7 slides left and right, the slide carriage 7 slides sideways integrally, and the vertical transport device 6 is swung left and right through the locking bracket 57. Therefore, since the hanging rod 55 is engaged with the vertical transfer device 6, it is formed in an arc shape to allow the vertical swing of the vertical transfer device 6 for the handling depth control and the locking bracket 57. A hole 50 through which the hanging rod 55 is inserted is formed, and as shown in FIG. 6, the connecting rod 38 that vertically swings the vertical transport device 6 can also swing horizontally along with the tip locking transport device case 46. However, the hole 50 to be inserted is formed as a long hole in consideration of the front and rear deviation of the locking bracket 57 that swings left and right with respect to the hanging rod 55 that slides laterally.

A threshing feed chain 31 is provided on the lateral side of the threshing device 5, and a stock carrier guide rod 34 from a stock carrier holding carrier case 47 for supplying grain culms to the threshing feed chain 31 is provided. Is extended in a cantilevered manner. The stock root guide rod 34 receives and supports the stock root side of the transported grain culm which is forced to fall sideways by a tip guide (not shown) and guides it onto the starting end portion of the threshing feed chain 31. In the stock guide rod 34, a portion on the tip side for transferring the grain culms is formed in a substantially arc shape with the rear fulcrum P as a center, and as shown in FIGS. Whether the rocking position is away from the threshing feed chain 31 or the rocking position is closer to the threshing feed chain 31, its tip is cantilevered so as to be positioned parallel to the threshing feed chain 31. It is extended and fixed to.

It should be noted that reference numerals are given in 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. The structure for laterally sliding the cutting pretreatment mechanism 17 may be as follows. As shown in FIG. 6, a lateral drive shaft 35 is pivotally supported with respect to the support case 16, and transmission cases 49, 49 for the raising device 2 are connected to both ends of the drive shaft 35. A sliding frame 37 is installed on the support case 16 on the front side of the lateral drive shaft 35.
It can slide to the left and right. The mowing device 3, the packer 4, and the like are fixed to the sliding frame 37 so that the sliding frame 37 can integrally slide laterally. On the other hand, the drive shaft 35 has a support case 1
6 to the left and right protruding portions, respectively, the reverse thread groove 3
5a is formed, and the left and right engaging tools 39B and 39A provided on the support case 16 side are fitted and engaged. The left and right engaging tools 39B and 39A are for connecting rod 40 and cylinder 4.
It is possible to bite into the corresponding thread grooves 35a, 35a alternately with 1. Therefore, as shown in the drawing, the right engaging member 39
When A is engaged with the screw groove 35a on the right side and the drive shaft 35 is rotated in the arrow direction, the sliding frame 37 can be slid to the right side. On the contrary, when the left engaging member 39B is engaged with the left thread groove 35a, the sliding frame 37 slides to the left. Here, it is desirable that the engaging portion of the tip ends of the engaging members 39A and 39B with respect to the screw groove 35a is of a ball bearing type because of its low movement resistance. With the above configuration, the motor and screw shaft for driving the sliding frame 37 are not required.

[0020]

[Brief description of drawings]

FIG. 1 is a plan view showing the position of the stock yuan guide rod when the pre-mowing treatment mechanism is located at the right end of the lateral sliding stroke.

FIG. 2 is a plan view showing the position of the stock yuan guide rod when the pre-mowing treatment mechanism is located at the left end of the lateral sliding stroke.

FIG. 3 is a sectional view showing a lateral sliding mechanism of the pre-mowing treatment mechanism.

FIG. 4 is a side view showing the cooperation between the mowing pretreatment mechanism and the vertical transport device.

FIG. 5 is a side view showing a pre-mowing treatment mechanism.

FIG. 6 is a principle view showing another embodiment of the lateral sliding mechanism of the pre-mowing treatment mechanism.

[Explanation of symbols]

 5 Threshing Device 6 Vertical Conveying Device 9 Traveling Body 17 Mowing Pretreatment Mechanism 31 Threshing Feed Chain 34 Stock Owner's Guide P Rear Support Point

Front page continuation (72) Inventor Kojiro Matsumura 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd. (72) Inventor Hisashi Doi 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd. (72) ) Inventor Minoru Hiraoka 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Works

Claims (1)

[Claims] A pre-cutting mechanism (17) for concentrating the raised cutting culm in the center of the cutting width, a vertical conveying device (6) for receiving the concentrated grain culm and conveying it toward the threshing device (5), and a vertical conveying device in a horizontal position. The threshing feed chain from the vertical conveying device (6) for receiving and supporting the stock basin side of the conveyed grain culm which is put into the threshing device (5) from (6) and guiding it to the starting end of the threshing feed chain (31). A harvesting pretreatment device for a combine, comprising a stock yuan guide rod (34) which is cantilevered and fixed toward (31), and said harvesting pretreatment mechanism (17).
Is configured to be slidable laterally with respect to the traveling machine body (9) equipped with the threshing device (5), and in synchronization with the pre-mowing treatment mechanism (17), a vertical transport device (around the rear fulcrum (P) ( 6) A combiner that pivots 6) so that it can swing to the left and right, and at least a portion of the stock element guide rod (34) that is involved in the delivery of grain culms is formed in a substantially arc shape with the rear fulcrum (P) as the center. Pre-cutting device.