DE1929852A1 - Improved adjustment device of the reel in combine harvesters - Google Patents

Description

"Clayson", naamloze vennootschap, Zedelgem (Belgium).

"Improved adjustment device of the reel in combine harvesters"

The present invention relates to improvements in combine harvesters, and more particularly to improvements the adjustment device of the reel located on the front of the combine harvester.

With a view to adapting the supply of the plants to be harvested to the respective circumstances, such as e.g. the height of the plants, their inclination with respect to the ground, etc., the reel concerned must, as is well known, both in the height direction as well as in the longitudinal direction of the combine harvester can be adjusted.

The height adjustment was previously done with hydraulic cylinders, while the adjustment in the longitudinal direction of the combine either by hand or, according to a special design, with a hydraulic cylinder was made.

The hydraulic control of such a double adjustment device is, however, relatively complicated and consequently quite expensive, while their operation is relatively difficult.

The improved regulation of the reel position according to the present invention has the above-mentioned purpose

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to simplify hydraulic control device as possible with a view not only to a significant lowering of the cost price, but also to a possible one to a large extent simplification of the operation and adjustment of the reel concerned.

The improvements according to the invention with regard to the task in question essentially consist of firstly, the association of suitable means, which

^ hitting reel slidable in the longitudinal direction of the Carrying the combine on frames pivoted about a common axis; second, at least one triangular, with a lever positioned at a corner on the relevant common axis; one between a second Corner of the relevant triangular lever and a side wall of the cutting board arranged hydraulic cylinder; and fourth, a coupling rod between the third Corner of the triangular lever in question and the above means.

f The features and advantages of the invention emerge clearly from the following description of a preferred exemplary embodiment. This description, given without any restrictive intention, is illustrated by the following drawings, in which

Figure 1 shows a longitudinal section of an inventive schematically reproduces improved combine harvester;

Figure 2 is a side view of the reel in question, namely the part F2 of Figure 1 Schematischer-

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weis «in an enlarged Μ * · zetab, with the reel is seen in three characteristic layers »

Figure 3 shows a partial top view of the device shown in Figure 2;

and the illustration " H , S and I Perspektiven" shows the three characteristic layers of the reel in question, which are soaped by the illustration 2.

Figure 1 shows a combine harvester that consists mainly of a mixing board 1 connected to it de · straw lifter 2, the whole of the mixing board and of the straw lifter existing device by two hydraulic Cylinder 1 can be pivoted about axis 3 and in the relevant Nihbrett on the one hand the knife 5 and on the other hand the pipe screw jack 6 is arranged. Finally, the reel 7 installed in accordance with the invention is located above the relevant milling board.

The other main parts of the combine harvester in question are the threshing drum I, the concave 9, the shaking devices 10, the grain sieves 11, the fan 12 for separating the chaff and grains, the grain elevator 13 which ^{transports the grain to the grain container I 1} *, and the elevator 15 for the return of the grains that have not been separated from the chaff to the threshing device 8-9.

As can be seen from the figures, the reel in question 7 is arranged freely rotating on an axis 16, which is mounted on both sides in a bearing 17 attached to a sliding sleeve 18. This sliding elixhsc is 18 Arranged freely sliding on a reel arm IS. If the

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Reel is in its lower position (see Figures 2 and * »), the relevant reel arms 19 rest on one Support 20, which is arranged on each side edge of the cutting board 1.

The rear end of the reel arms 19 are fastened to a tube 21 mounted freely rotating on a hollow shaft 22. The hollow shaft 22 in question is for its part freely rotating, on the one hand in supports 23 which are attached to the frame of the cutting board, and on the other hand by means of one welded in each end of the tube 22 Pin 24 in socket 25, which are also attached to the frame of the cutting board. -

Each sleeve 18 is according to the present embodiment provided with a fixed stop 26, while each reel arm 19 has an adjustable stop 27, which can interact with the relevant stop 26.

Of course, the attacks in question can also be used in any other suitable manner perform, for example in the form of holes in the reel arm 19 ″, in which a pin of the reel arm can grip for the purpose of forming the adjustable stop 27, with the relevant If the stop 26 is formed by the adjacent end of a sliding sleeve 18.

On each of the pegs in question 2H there is a triangular one Lever 28 welded to one corner. All levers 28 can rotate together with the hollow shaft 22. One second corner of the relevant lever 28 is freely pivoting by means of a spindle 29 with the piston rod 30 of a hydraulic

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ORIGINAL INSPECTED

connected hydraulic cylinder 31, the housing pivotable is connected to the corresponding side wall of the cutting board 1, while the third corner by means of the spindle 32 is freely pivoting connected to a rod 33, which on the other hand with a spindle 34 on the corresponding slide sleeve 18 is attached.

Finally, each reel arm 19 is connected to the corresponding rod 33 by means of a spring 35.

The inventive setting of the reel 7 proves proves to be extremely simple and can be fledgled describe.

When the reel 7 is out of the position shown by Figure 4 Position in a higher or a further backward one Is to bring location, it is sufficient to put the hydraulic cylinder 31 under pressure, consequently the lever 28 is pivoted about the axis of the hollow shaft 22, the reel ends thanks to the attachment of the lever 28 on a common Axis 22 can be pivoted through the same angle.

The upward pivoting of the lever 28 results in a backward displacement of the rods 33, consequently the Sliding sleeves 18 move along the reel arms 19 and thereby give the reel 7 an almost straight back shift.

During this movement of the reel 7 expand the above springs 35,

When the stops 26 with the stops 27 in contact come, hears the relative movement of the sliding sleeves

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18 with respect to the reel arm 19, consequently the Reel arms19 because of the further pivoting back of the relevant triangular lever 28 automatically pivot around the hollow shaft 22 until they finally reach the position shown in Figure 6 Reach the location shown.

In order to bring the reel arm 7 back into its lower position or to move it forward, it is sufficient for the relevant one to relieve hydraulic cylinder 31, so that the reel 7 on the one hand by its weight and on the other hand

"by the springs 35 into that shown by the illustration U." Location is brought back.

Of course, this return movement of the reel 7 can also be carried out with double-acting hydraulic cylinders 31 generate.

In addition, the reel 7 can of course be inserted into any Bring arbitrary interlayer between the two layers shown by Figures 4 and 6 and in such a way Hold the intermediate layer.

k There comes an adjustment device in this way

for combine harvester reel, with the hydraulic Control device and all hydraulic equipment are extremely simple, which on the one hand is a very economical design and on the other hand is extremely easy to use and control enabled.

The present invention is of course in no way limited to what has been described above and what follows Drawings illustrated embodiment, but relates also refer to all possible changes and additions

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and adjustments in terms of shape and dimensions, provided of course that the scope of the invention is not exceeded.

ORIGINAL! HSPECTED

Claims (1)

1923852 ■ - 8 - APPROACH . 1.- Improved adjustment device of the reel in combine harvesters, characterized in that the relevant Improvements essentially comprise the combination of the following devices: Means for slidably supporting the reel (7) in the longitudinal direction of the combine harvester on reel arms (19), which in turn can be pivoted about a common'welle (22-24) are arranged; at least a triangular lever (28) mounted with one corner on the relevant common shaft (22-2H); one between a second corner of the triangular in question Lever (28) and the corresponding side wall of the cutting board (1) arranged pressure cylinder (31); and a coupling rod (33) between the third corner of the relevant lever (28) and the above means. 2 »- Improvements according to the above claim 1, characterized in that the reel shaft (16) on both sides is stored, the bearings (17) in question on) bushings (18) which slide freely on a reel arm (19) are mounted, are attached. 3.- improvements according to claims 1 and 2 above, characterized in that each sliding sleeve (18) is provided with a fixed or adjustable stop (26), which is provided with an adjustable or fixed stop (27) of the corresponding Reel arm (19) can interact. U.- Improvements according to any of the above claims, characterized in that the cutting board (1) in place of each reel arm (19) a support (20) 00982 1/0320 ORIGlMALiNSPECTED 19 ^ 352 indicates what the reel arms (19) rely on when the reel (7) is in its lowest position. 5. Improvements according to any of the above claims, characterized in that each end of the common Shaft (22-24), on which the reel arms (19) are mounted to pivot freely, with a triangular lever (28) is provided, which is attached with its lower corner on the relevant ending shaft (22-24). 6. Improvements according to any one of the preceding claims, characterized in that each sliding sleeve (18) is articulated to a rod (33) which. on the other hand, articulated at the upper corner of the relevant triangular lever (28) is coupled. 7.- improvements according to claim 1 or 5, characterized in that the common shaft (22-24) in question rotates freely in supports (23) of the cutting board (1) is stored. 8.- Improvements vegetable to any one of the above claims, characterized in that the third, forward directed corner of each triangular lever (28) is connected to a pressure cylinder (31) which, on the other hand, is articulated to the cutting board (1). 9.- Improvements according to claims 1 and 8, characterized in that the printing cylinder in question (31) are hydraulic cylinders. 10, - Improvements according to claims 1 and 8, characterized in that the relevant printing cylinder (31) are pneumatic cylinders. 009821/0320 ORIGINAL INSPECTED 19 293 - ίο - 11.- improvements according to claims 1 and 8, characterized in that the relevant pressure cylinder (31) is driven by an electric motor or not Screw jacks are replaced. 12.- improvements according to the above claims 1 and 8, characterized in that the relevant pressure cylinder (31) are single-acting. 13. Improvements according to the above claims and 8, characterized in that the relevant pressure cylinders (31) are double-acting. 14.- Improvements to any of the above Claims, characterized in that single-acting in use Pressure cylinder (31) of each reel arm (19) by means of a return spring (35) on the corresponding one, with a triangular lever (28) connected rod (33) is coupled. PAe Dr Andrejewski, Dr Honke 0 9 8 2 1/0320 ORIGINAL INSPECTED