DE2450386A1 - POWING SYSTEM WITH SEVERAL INDIVIDUAL PLOWS, CONTINUOUSLY ADJUSTABLE DISTANCE - Google Patents

Description

Goodfield. Illinois (USA)

Plow system with several individual plows at continuously adjustable intervals

The invention relates to agricultural implements and, more particularly, to a plow system having a plurality of individual ones on one common frame arranged individual plows, the "for the simultaneous Plowing a variety of furrows being pulled by a towing vehicle.

Plow systems with a large number of loads on a main frame

solid single plows pulled by a towing vehicle are known. In most cases, in such systems, the individual plows are rigidly longitudinally at predetermined intervals the main tree is arranged, which is inclined with respect to the direction of travel of the vehicle. Thus, the single plows are in

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different lateral distances and in different Clearances behind the vehicle arranged in such a way that a attached single plow the plowed earth into a Turns the furrow created by an upstream single plow. With these systems there was the possibility of the distance set between the furrows formed by the plurality of individual plows. Until now, however, the setting of the Distance of the individual plows a tedious and time-consuming job that was only carried out when the hitch for example pulled by another vehicle or used under other circumstances than the usual should be. The adjustment was made by changing at least one of the bolt holes of each individual plow when they are attached to the frame, so that the previous plow systems with a number of individual individual plows are not in the Were constructed wisely to make it easier to adjust the spacing of the individual plows.

It has been found that in the normal operating state in which a Land.wirt a system or a hitch Used of this type, considerable advantages can be obtained if an operator easily plows the individual plows can adjust without leaving the tractor, and if continued to adjust the distance of the Single plowing is possible over a fairly wide area. This means that even the previous plow systems that use the Adjustment of the distance between adjacent individual plows allowed, only certain distances allowed, e.g. 35.56 cm (14 inch) or 40.64 cm (16 inch) or 45.72 cm (18 inch). On the other hand, an improved single plow allows adjustment over a continuous range of single plow spacing from, for example, 35.56 cm (14 inches) to to 50.8 cm (20 inch), while at the same time the adjustment can be made very quickly and easily by one operator

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without having to leave his seat on the tractor.

Some factors that have an influence on the desired cutting width between adjacent individual plows, where "adjacent" of course does not denote a real juxtaposition, since yes, a single plow pulls the next, are the type of soil to be worked, the type of vegetation to be worked under The size of the tractor, the degree of moisture of the soil being worked, the slope and the direction of the slope of a hill or Walles etc. The depth of the furrows to be drawn can also have an influence on the desired cutting width. albeit to a lesser extent than the other factors. When stubble fields are worked under and a normal clay soil is present, the distance between adjacent individual plows can be 35.56 cm (14 inches) or 40.64 cm (16 inches) or even more be more if the power of the tractor is big enough. A moist soil requires closer spacing of the neighboring single plows as a dry soil as the tractor Do not develop as great a pulling force on damp ground can etc.

A plow system of the type described above can usually have about five individual plows. Has the tractor a small or medium-sized engine, the distance between adjacent individual plows can be between 35.56 cm (14 inch) and 40.64 cm (16 inches) for a total width of up to 203.2 cm (80 inches). The operator goes to a tractor of greater power, it being understood that these machines usually have a longer service life than a normal tractor, the operator can save a number of man-hours by using the Width between adjacent individual plows up to 50.8 cm (20 inches), so that the total width for a single

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One pass is 254 cm (100 inches), an increase of 20 %. This is achieved with the device according to the invention without having to buy a new plow system.

In the device according to the invention, a plurality of individual plows are each rotatable about a vertical axis on one Arranged main frame of a plow system. The single plows are attached to a main tree that has the direction of travel of the vehicle is inclined, and the individual plows are laterally uniformly increasing distance along the inclined main tree Arranged in such a way that when the system is attached to a tractor, the individual plows are at an evenly increasing distance from a pivot connection between the main frame and the tractor.

The individual plows are mechanically coupled by means of a guide tree, which is preferably parallel to the inclined main tree of the frame and is arranged pivotably on flanges of the plow tree of each individual plow. Behind the inclined main tree, a ploughshare and a mouldboard are attached to the plow tree, and in front of the inclined main tree a rolling plow knife is arranged. A hydraulic piston connects the guide tree to the main frame Transmission from the guide tree to the inclined main tree and therefore to the rotation of the individual plows with respect to each other inclined main tree. When rotating the single plows "open" or "close" the mouldboard and plowshares, i. the cutting direction or the cutting line of the individual plows changes. If the single plows are then used for plowing, so the recoil force aligns the individual plows with respect to the direction of travel of the vehicle and rotates the entire main frame about the swivel connection with the tractor. The individual plows are rotated in unison, so that this aligned with the direction of travel of the tractor.

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Another advantage of the device according to the invention is that the operator of the tractor pulls the separating This maintains the distance from a previous furrow can that he is holding the right rear wheel, seen from behind, in a previous furrow. This is the lateral distance If adjacent individual plows are 40.64 cm (16 inches), the front or right-hand individual plow is seen in the direction of travel 16 inches from a pre-formed furrow. Does the operator change the distance between the individual plows to 45.72 cm (18-inch), so the right one shifts Single plow sideways 2 inches to the left from its previous position. The right rear wheel stays in the previously formed furrow, the distance between this furrow and the front single plow is 45.72 cm (18 inches) set.

A stern section is attached to the end of the sloping main tree and provided with a suspension for a wheel that is in the last formed furrow runs. The end has a second hydraulic. Piston for lifting the rear part of the inclined Main tree opposite the carrying wheel, so that there is the possibility of lifting the single plow above the ground, when driving over roads or soil that is not to be plowed, and also allows the plowing depth to be adjusted.

Furthermore, the plow system has a control system to turn the rear wheel in a direction opposite to the turning direction Control the tractor to the plow system or the hitch directly behind the tractor while the twist around.

Further features and advantages of the plow system according to the invention the person skilled in the art can derive from the following detailed description of a preferred embodiment and with the aid of the drawings

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to take. The drawings show in

Fig. 1 is a plan view of a plow system according to the invention;

Figure 2 is a front perspective view of the plow system of Figure 1;

Fig. 3 is a partial view of the rear part of the plow system according to Fig. 1;

FIG. 4 shows a perspective view of the rear part according to FIG. 3, with the linkage removed;

Fig. 5 is a side view of a single plow; and in

6 shows a schematic representation of the setting of the distance between the neighboring individual plows.

In Fig. 1, the plow system has a hitch 10 for connection to the rear part of a tractor 11 and a vertical pivot connection 12 about which a main frame of the illustrated plow assembly is rotatable. The main frame 13 has a tree 14, which extends generally in the direction of travel of the tractor 11, and an inclined, on the back of the longitudinal tree 14 welded main tree 15 and a strut 16. At the inclined Main tree 15 five individual plows 17 are pivotally attached. All individual plows 17 can be constructed similarly, so that to understand the further only one has to be explained in more detail. The front end of each individual plow 17 has a connecting flange 18 which is pivotably connected to a guide tree 19 running parallel to the inclined main tree 15. One hydraulic cylinder and one Piston rod 20, sometimes also as a hydraulic piston

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are pivotable at one end of the longitudinal beam 14 at 21 and pivotable at 22 at the end of the piston rod with an extension part 18a of the connecting flange 18 of the front Single plow 17 connected.

The piston 20 is a double-acting hydraulic piston, and the lines can along the longitudinal beam 14 to a usual power transmission arrangement on the tractor 11 run, with the built-in controls to the operator allow the tractor 11 easy access. When the piston 20 is expanded, the extension part becomes 18a of the connecting flange 18 of the front single plow clockwise and thereby the entire front single plow also turned clockwise. This process moves the guide tree 19 axially in the direction of the arrow 24 and thereby rotates all other connecting flanges 18 and the associated ones Single plows clockwise. This process "closes" the neighboring individual plows; i.e. the distance between vertical Levels through the swivel connections of the individual plows and through the cutting or plowing direction of each individual plow moves closer together. By contracting the piston 20 the guide tree 19 moves rearwardly with respect to the inclined main tree 15, but remains parallel to it. This process "opens" the neighboring individual plows and the distance between adjacent individual plows increases. The setting process is shown as a diagram in Fig. 6, with the individual plows for the sake of clarity are not shown, but their direction of section by chain lines 17a and the main frame are indicated with solid lines. It is clear that the cutting lines of the individual plows are always in the forward direction Show the vehicle direction of the tractor; due to their possibly conventional structure, the single plows strive to align itself when pulled through the ground will. The resistance forces of the soil act on the • ploughshare, the plow knife and the scraper essentially

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like the action of an oar. If an increase in the lateral distance between the individual plows is desired, the hydraulic cylinder 20 is contracted and the line of intersection of the front individual plow is thereby rotated from the position of the chain line 17a to that of the dashed line 17b. As a result of the pivoting connection of the individual plows on the inclined main boom 15 and the synchronism of all individual plows with the aid of the guide boom 19, all individual plows are rotated in an anti-clockwise direction. The schematic representation of FIG. 6 is exaggerated in order to better explain the principle; the inclination of the cutting line 17a is rotated through the angle θ to the orientation 17b. It is clear that with this rotation the lateral distance between the adjacent individual plows increases, namely from the distance S between the chain lines to the distance S ¹ between the dashed lines.

If the hitch is used to work the ground, the frame of the hitch becomes due to the tendency to align the individual plows, indicated in the diagram of FIG. 6 by vertical dashed lines 17c, and the pivot connection rotated into the position shown in dashed lines.

When performing such a setting on a proposed Plow system can achieve the following advantages: 1) The lateral spacing of each adjacent pair of individual plows remains constant for a given position of the hydraulic cylinder 20 and ensures a constant distance adjacent furrows in all settings of the individual plows; 2) the movement of the individual plows to the right is progressive; i.e., if the front single plow moves 2 inches to the right, then the second single plow moves by 10.16 cm (4 inches) and the third single plow by 15.24 cm (6 inches), etc., maintaining constant furrow spacing will; and 3) the front single plow is sideways with

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the rest shifted, albeit at a smaller distance from the right rear wheel W of the tractor 11 (see. Fig. 1). Of the latter advantage allows the operator to To keep wheel W in a previously drawn furrow. Still, he can be sure that the distance between the previously drawn Furrow and the furrow drawn by the front single plow is the same, as is the lateral spacing of all neighboring plows Pairs of single plows.

From Fig. 6 it can be seen that the center line is in the longitudinal direction of the frame structure 14 moves by the same angle Θ as the line of intersection of each individual plow. Each of the individual The swivel connection of the single plows moves at the same angle Θ. These pivot connections are in multiples a predetermined distance from the pivot connection 12 is arranged. Therefore, the distance between the pivot connection of the The first individual plow and the pivot connection 12 has the amount R, then the distance between the pivot connection of the second Single plow and the swivel connection 12 of the tractor hitch the amount 2R, etc. It is clear that the lateral displacement of the individual plows is a function of the rotation of a Single plow by the angle θ, and that the displacement of the Single plows is progressive because they are preferably at multiples of the distance between the pivot connection 12 and the Swivel connection of the first single plow are arranged.

In Fig. 1 the rear part of the inclined main tree ^ 15 of carried by a trailer part 27 which is pivotably connected at 28 to the inclined main boom 15. The rearmost single plow is carried by the trailer part 27 in a manner to be described below and the entire trailer part 27 is when transferred of the guide tree 19 rotated. At the rear of the trailer part 27, a carrying wheel 28 is arranged in a cter manner that it is always in the direction of the rearmost individual plow when plowing.

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2450336

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drawn furrow is running. This is achieved in that the entire trailer part 27 as a unit with the rearmost individual plow is pivoted. The trailer part 27 also has a hydraulic piston for lifting the connection between the main frame 13 and the trailer part 27 with respect to the carrying wheel 28, to lift the single plows off the ground when the plow system on roads or the like. is transported.

As explained below, a control mechanism 31 is responsive to rotations of the tractor 11 to rotate the rear carrying wheel 28 in FIG opposite direction to rotate and. thereby the trailer part of the trailer when turning outwards and in a way to keep behind the tractor, In the very long Ladder park fire brigade trains are controlled.

In Fig. 2, the trailer device 10 has a right-angled cross brace 35, at the ends of which a conventional hitch mechanism 36 is arranged for attachment to the rear of a tractor that allows rotation about a horizontal axis. A base with an upper plate 37 and a lower plate is attached to the cross strut 35 with square bolts 39. By Loosening the bolts 39, the base is laterally displaceable on the cross strut 35 to allow various attachments to tractors To enable wheelbase. As a result, the distance between the right rear wheel ¥ of Fig. 1, that in a previous one The furrow is running, and the pivot axis 12 is set (see FIG. 1). The pivot axis 12 is shown in Fig. 2 by means of the vertical line 12a and also represents the center line of an axis rotatably arranged within a cylinder liner 40. The top of the axle has a collar 41, while the bottom of the axle is welded to the horizontal plate 37. The axle mounted inside the cylinder liner 40 therefore rotates with the cross strut 35, i.e. when the tractor is rotating. The top of the collar 41 has a laterally projecting

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Arm 42, with the distal end of which a pull rod 43 is pivotably connected. ·

First and second groove parts 44 and 45 are provided with suitable cutouts and at a perpendicular distance from the Cylinder liner 40 welded on. A vertical plate 46 is welded to the rear of the groove parts 44 and 45. At the The rear of the plate 46 is the strut 16 and the box frame part 14 welded on in the longitudinal direction.

In Fig. 5 one of the individual plows is shown in detail. A C-shaped yoke 48 encompasses the main sloping tree 15 from the Side and extends backwards from there. The front ends of the yoke 48 are connected to a vertical shaft 49, the is rotatably arranged on the inclined main tree 15. The yoke 48 is thus rotatable about a vertical axis. At the front end A rolling plow knife 52 is attached to the lower end of the yoke 48 in a conventional manner. At the back of the yoke 48 is a plow leg 53 rotatably arranged, with the lower End of a ploughshare 54 and a scraper 55 connected is. The plow leg 53 can be connected by means of a spring mechanism 56 in such a way that when it reaches an immovable Obstacle the ploughshare is swung up to disengage from the ground and damage to avoid. As already mentioned, the single plow can be of the usual type, while in the drawings it is a preferred version is shown.

In the representation of the trailer part 27 in FIGS. 3 and 4 is a box frame 57 by means of a collar 58 at the distal end of the inclined main tree 15 rotatable about a vertical Axis attached. The distal end of the guide tree 19 is pivotable at 59 with a flange 60 located below of the box frame 57 connected. The rearmost single plow 17

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is welded to a vertical plate 61 extending from the underside of the flange 60. So will the Guide tree 19 implemented forwards and backwards, so the entire trailer part rotates including the rearmost, single plow as a unit.

The box frame 57 is at the top of a rear stern tree 63 welded, at the distal end of which a vertical connection 64 is arranged. The vertical connection 64 forms a front connection in a parallelogram linkage 65. The linkage 65 has upper and lower horizontal connections 66 and 67, which are pivotally connected at their front ends to the vertical connection 64, as well as a rear Connection with a vertical socket 69 'which is pivotable to the rear ends of the horizontal connections 66 and connected is. The ends of the vertical socket 69 extend above and below the associated horizontal connections 66 and 67. A vertical axis 70 is mounted inside the socket, while its underside has a laterally extending one Arm 71 is connected (see. Fig. 1). The arm 71 forms an axis for the carrying wheel 28.

A support plate 72 is welded to the upper side of the upper horizontal connection 66, and a supporting part 73 is welded to the upper side thereof is arranged for a pivoting movement of the hydraulic piston 30. The front end of the hydraulic piston 30 is pivotable connected at 75 to a vertical flange 76 on the outside of the box frame 57 (see. Fig. 3). When expanding the Piston 30, the parallelogram connection 65 assumes the position shown in dashed lines; i.e. the draw beam 63 becomes vertical lifted up. This can also be used to adjust the plowing depth and to lift all individual plows over the Use soil. However, in order to lift all individual plows off the ground, the lever mechanism of the hitch is the Tractor used to pull up the front end of the trailer.

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to lift. Such lever mechanisms are normally found on tractors provided and therefore do not need to be described in more detail.

In Fig. 4 a connecting rod 79 is welded to the collar 58, which extends laterally from there and has two flanges 79a and 79b with openings. In Fig. 1 this is distal end of the tie rod 43 pivotally connected at 81 to the flange 79a of the horizontal tie rod 79, which in turn is pivotable about the axis 28. To rotate the carrying wheel 28, a second tie rod 83 is pivotable between the flange 79b of the horizontal tie rod 79 and the outer one Connected to the end of a second horizontal connecting part 85 which is rigidly attached to the top of the axle 70.

From Fig. 1 it can be seen that upon rotation of the tractor to the right, the vertical axis 41 (see. Fig. 2) rotates counterclockwise, since it is rigid with. the cross brace 35 is connected by means of the plates 37 and 38 and the bolt 39. As a result, the pull rod 43 moves backwards and thereby rotates the T-strut connection 79 counterclockwise and pushes the pull rod 83 to the rear. That in turn turns that rear horizontal connecting part 85 clockwise with the axis 70 and rotates the carrying wheel 28 to the left. The tractor starts So one rotation, so the carrying wheel 28 rotates outward, moves the rear part of the trailer on a wire Schwenkτ radius and holds the towing hitch behind the tractor. For the sake of clarity, neither the tie rods nor are in FIG the lower part of the rearmost single plow drawn.

It is clear that because of the connection of the rearmost single plow with the trailer part '27 and the carrying wheel 28, the carrying wheel 28 is always in the position drawn by the rearmost single plow

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Furrow is running, although this is not necessary for using the device according to the invention. That is, the carrying wheel could be moved sideways and e.g. run on flat ground and not in a furrow. In other words: at When the individual plows are rotated, the rear section is also rotated about the vertical axis of rotation 28 and, since the carrying wheel 28 is located directly behind the last single plow 17, it will always follow in the furrow drawn by this single plow. To best achieve this goal, a parallelogram is formed from the following four pivot points: 1) The pivot connection 12 on the hitch 10; 2) the pivotal connection between tie rod 43rd and arm 42; 3) the Connection between the flange 79a of the arm 79 and the pull rod 43; 4) the connection between the base of the arm 79, i.e. the tail joint, and the tail of the main inclined tree.

A second carrying wheel 90 (see. Fig. 1 and 3) is arranged adjustable with the help of a vertical tree 91 in order to plow to come into contact with the ground and limit the plowing depth.

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Claims (1)

Patent claim 1. Plow system for attaching to a tractor with a large number of individual plows, each with a soil cultivation tool and with a main frame with one opposite the Direction of travel of the plow system inclined, horizontal main tree, which is rotatably connected to the tractor about a vertical axis, characterized by devices for partially attaching the plow system to a tractor, rotatable about a vertical axis of the towing device; a main frame for the arrangement of the front single plow with respect to the vertical axis of the hitch and one wheel of the tractor in such a way that when the plow system is turned the front single plow moves in a controlled arc around the vertical axis of the coupling device, and for the arrangement of the front single plow in a predetermined manner, by the distance from the wheel of the tractor to discontinue; Devices for rotating the individual plows in unison to adjust the distance between them, whereby an adjustment of the distance between the individual plows the main frame around the vertical axis of the hitch rotates and thereby the lateral distance between the first single plow and the extension of the wheel of the tractor in Longitudinal direction selects; Devices on the stern boom that support the distal end of the main frame on the ground; as Control devices for controlling the rear section when the vehicle moves. 509829/0206