DE1199041B - Device for regulating the cleaning wind flow in threshing machines - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN -007WW PATENT OFFICE Int. α .:

AOIf

EDITORIAL

Number:
File number:
Registration date:
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German: 45 e-7/44

1199 041
D42891III / 45e
November 8, 1963
August 19, 1965

The invention relates to a device for regulating the cleaning wind flow in threshing machines or combine harvesters. The problem to be solved with the subject matter of the invention is seen in To simplify the regulation of the cleaning wind flow and to carry it out more quickly than before.

Threshing machines and combine harvesters are known in which the speed of the cleaning fan is continuously adjustable. The speed adjustment is attached directly to the adjustable drive z. B. by means of a hand crank, cable pull. Like. Made. With the speed control it should be achieved that the quality of the cleaning for each type of grain Maximum value received. In order to be able to control the quality of the cleaning, however, it is necessary on Chaff outlet of the cleaning device, which is often located at the straw outlet of the combine harvester, Take samples. The operator sets a speed for the cleaning fan and continues to run behind, controls the quality of the cleaning, goes back if the quality is not sufficient, corrects the speed of the cleaning fan continues and checked again. So the person has to do this several times run back and forth until the desired cleaning quality is achieved. This way of working is cumbersome and time consuming.

A fan with air throttle valves for combine harvesters and threshing machines is also known, its housing with a lever and a hinged air direction setting rod in connection stands and is arranged pivotably about the axis of rotation of the impeller. At the pivotable trained Fan housing is attached to a plate on which the air flow adjustment rod and scissors connected air throttle valves are arranged. This known device acts so that in the Regulation of the air direction on the corresponding rod inevitably also adjusts the air throttle flaps because the air flow adjustment rod is fixed in place. When this known arrangement is used in combine harvesters and threshing machines in which the quality of the cleaning device is at Straw discharge, i.e. at the end of the machine opposite the cleaning fan, is controlled it is also necessary that the operator walk back and forth several times, i.e. a repeated fan setting at one end and sampling at the other end the machine must do until the desired cleaning quality is finally achieved.

Also known is a device for regulating cleaning in combine harvesters in mountain and valley

Device for regulating the cleaning wind flow in threshing machines

Applicant:

JOHN DEERE-LANZ Aktiengesellschaft,

Mannheim

Named as inventor:

Mahlon Love, Osco, JIl. (V. St. A.)

drives with the help of at least one pendulum that sets the blower wind current according to the slope regulates automatically. The task at hand is seen here in the automatic regulation of the straw

ao feed on the shaker and the strength of the cleaning wind current according to the and descent of the combine harvester. To this end, it is proposed that the pendulum, which is used to regulate the blower wind current, has a rod with the straw catching flap of the combine is in operative connection and a damping device, for example springs, is built into the control device, which only allows the cleaning to be regulated if the incline of the combine harvester continues to change. Through this if you want the cleaning device of the combine to work properly, even with mountain and Reach the descent.

The object is achieved according to the invention essentially in that the device for regulating the cleaning wind flow is arranged at the discharge end of the threshing machine.

In this way, the wind current is regulated at the point where the quality of the cleaning is achieved the crop is checked. This has the advantage that the operator is from a single point can regulate the wind flow of the cleaning fan as well as control whether the chaff still contains grains. If the quality of the cleaning is not satisfactory, the operator can Regulate the cleaning wind flow from the same place until the quality of the cleaning is at its best receives. This way of working is convenient and time-saving. The device for regulating is advantageous the wind flow in the area of the chaff outlet of the cleaning device of the threshing machine or the Combine arranged.

509 657/109

According to a further proposal according to the invention, the device consists of one to the Area of the chaff outlet of the cleaning device guided, manually operated rods or the like, through which the stepless adjustment of the drive can be carried out or, for example, the wind regulation flaps of the cleaning fan are adjustable. This design is structurally simple and functionally reliable.

According to the invention, the cleaning device extends into the area of the chaff outlet Part of the actuating linkage on the machine is axially displaceable and acts with a display device together. This further facilitates the operator's work, and that can be done in advance with the display device the most favorable speed of the cleaning fan for the cleaning quality is set for each type of grain will. For this purpose, the actuating linkage is in a threaded guide designed as a handle axially adjustable and provided with a pointer that is attached to the side wall of the machine or cooperates on the bearing of the displaceable part of the actuating rod attached scale. This arrangement is characterized by its simplicity and robustness.

The drawing shows an exemplary embodiment of the subject matter of the invention described below illustrated. It shows

F i g. 1 is the view of an only partially shown Harvester,

F i g. 2 shows the associated top view, for the sake of clarity because some combine harvester components have been left out,

F i g. 3 shows a display device from FIG. 1 on a larger scale.

In the self-propelled combine harvester shown in the drawing, 1 is the drive motor referred to, the crankshaft 2, seen in the direction of travel, for example protrudes on the left side and a pulley 3 carries. The latter can be via a belt 4 and a second pulley 5 for example, drive the threshing mechanism of the combine harvester. The shaft 6 of the threshing mechanism crosses the housing of the combine harvester, its free end protrudes on the right side of the combine harvester and for example carries a sprocket ?. This chain wheel 7 drives a further chain wheel 9 via a chain 8 on, which sits, for example, on the shaker shaft 10 of the combine harvester. On the shaker shaft 10 there are also two V-belt pulley halves 11 and 12 attached, the former fixed, the second is axially displaceable. With this V-belt pulley 11, 12 is a V-belt 13 is the Transmission ratios corresponding to automatically adjusting V-belt pulley pair 14 connected, which drives the shaft 15 of the cleaning fan 16.

The speed of the fan 15, 16 can be adjusted by axially displacing the V-belt pulley half 12 can be changed on the shaker shaft 10. For this purpose, the V-belt pulley half 12 is on the The outside is provided with a two-armed lever 17 extending approximately horizontally in the direction of travel, its end extending in the direction of travel to a strut 18 attached to the combine harvester is articulated, while its rearwardly protruding free end for receiving a pull rod 19 is provided is. The lever 17 itself is by means of a vertical bolt 20 on a shoulder of the V-belt pulley half 12 hinged. The axial movement of the V-belt pulley half 12 can be achieved by the pull rod 19, which crosses the combine harvester and on the left side of the combine harvester an angle lever 21 is connected. The latter is hinged to the combine with one leg while on the other leg, offset by approximately 90 °, a second pull rod 22 is provided which extends approximately extends parallel to the combine harvester to the rear as far as the area of the chaff outlet 23.

With the help of this arrangement it is achieved that the operator from the chaff outlet 23 of the combine harvester can adjust the speed of the cleaning fan by operating the pull rod 22 to to get the desired quality of cleaning of the crop. At the same time can be checked at this point whether there are grains in the chaff, what is the goodness of the purification. The operator is therefore able to regulate the cleaning from the same place and to check whether the setting made has the correct effect.

In order to further simplify this work, a can at the rear end of the straw walker box 24 easily accessible display device 25 be attached (FIG. 3), which consists of a box 26 and a handle 27 consists. The box 26, which is rectangular, for example, serves as a bearing for the free end of the pull rod 22 and has a rectangular opening

28 through which part of the rod is visible. In the area of this opening 28, the rod 22 is with a pointer 29 is provided, the tip of which points to a series of markings 30 below the Opening on the box outer wall are attached. The end of the rod 22 is threaded and protrudes backwards. The handle 27 is screwed onto the protruding end of the rod 22. The latter is attached to the combine harvester so that it can be used by the operator Observing the cleaning quality at the chaff outlet 23 can be easily adjusted. By rotating the Handle 27 move rod 22 and pointer

29 axially, while the angle lever 21 is pivoted and the pull rod 19 and the V-belt pulley half 12 are shifted so that finally the speed of the cleaning fan 15, 16 changes accordingly. The position of the pointer shows the speed of the fan 15:16 brings the best cleansing for the grain in question, so that one can find out later can set this speed in advance.

It is also possible to arrange the adjustment parts all on one side of the combine harvester.

Claims (5)

Patent claims: 1. Device for regulating the cleaning wind flow in threshing machines, characterized in that the device (19 to 30) is arranged at the discharge end of the threshing machine is, 2. Apparatus according to claim 1, characterized in that it is in the region of the chaff outlet (23) the cleaning device of the machine is arranged. 3. Apparatus according to claim 1 or 2, characterized in that it consists of one to in the area of the chaff outlet (23) of the cleaning device to be operated manually Linkage (19 to 30) or the like. Consists of the stepless adjustment of the drive (11 to 14) can be carried out or, for example, the wind regulation flaps of the cleaning fan are adjustable. 4. Device according to one or more of the preceding claims, characterized in that that the part (22) that extends into the area of the chaff outlet (23) of the cleaning device of the actuating linkage (19 to 30) is mounted on the machine so as to be axially displaceable and with a display device (25) cooperates. 5. Apparatus according to claim 4, characterized in that the actuating linkage (19 to 30) axially adjustable in a threaded guide designed as a handle (27) and with a Pointer (29) is provided with a on the machine side wall or on the bearing (26) of the Slidable part (22) of the actuating linkage attached scale (30) cooperates. ίο Publications considered: German Patent No. 1,004,412;
Patent No. 23,384 of the Office for Inventions and Patents in the Soviet zone of occupation in Germany. 1 sheet of drawings 509 657/109 8.65 © Bundesdruckerei Berlin