DE1242929B - Reversible plow with width adjustment - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT

EDITORIAL

Int. CL:

AOIb

German KL: 45 a -65/02

Number: 1 242 929

File number: R 40427 HI / 45 a

Filing date: April 21, 1965

Open date: June 22, 1967

The invention relates to a reversible plow in which the frame carrying the plow body is opposite the plow frame, e.g. B. to be coupled to the three-point linkage of a tractor Coupling, is laterally adjustable by means of an actuator that can be operated from the tractor seat (Width adjustment).

In a known plow of this type, it is also used as a coupling of a three-point linkage serving plow front frame approximately vertically above the bearing of the turning shaft one from the tractor seat from a rotating spindle mounted via a universal joint with an adjusting device attached to the plow frame is coupled. By means of this adjusting device, which in the known case as a two-armed Lever or designed as a threaded spindle, the plow frame can be pivoted relative to the turning shaft will. In this known plow, the plow frame can only pivot under the turning shaft, because when swiveling over the turning shaft, the universal joint under the turning shaft would have to pivot through, whereby the spindle would hit the turning shaft.

Also known is a side adjustment device which is built onto the drawbar of a tractor is and essentially from one by means of a pivotable lever from the tractor seat Rod with lanyard. This device is only for trailer devices, but not for Reversible plows usable.

Next, a bed plow is known, which is opposite the coupling of a three-point linkage by a A swivel lever that can be reached from the tractor seat or a spindle can be adjusted transversely in relation to the coupling is, whereby a sleeve is moved on a cross member of the coupling. The panning of a Plow frame is not possible with this device.

In another known bed plow there is a transverse to the direction of travel on the plow frame Spindle is provided which can be driven via a bevel gear. A spindle nut is through set collars fixed on a crossbar of the coupling of a three-point linkage, so that when the Spindle a transverse adjustment of the plow frame against the coupling must take place. Also one Such an adjusting device cannot be used with reversible plows.

Furthermore, avich is a device for fixing the transverse position of the lower links of a three-point linkage known. The adjustment device is intended to enable various fixed transverse positions to be set - reversible plow with width adjustment

Applicant:

Rabewerk Heinrich Clausing,

Linne about Bohmte

Named as inventor:
Ferdinand Zach, Bad Essen

borrowed. When using such a device would have to allow a free adjustment of the plow allow a real pivot point to be provided on the coupling. In this case, however, the train point would be not in front of, as desired, but almost 1 m behind the tractor's rear axle. The well-known The device would therefore also not be suitable for reversible plows of the usual type for width adjustment.

Finally, a plow is also known in which the plow leg is vertically adjustable on the plow front frame is stored. A spindle engaging a sliding sleeve is used to adjust the height Turning a handwheel designed as a spindle nut is axially displaceable.

With none of the known devices it is possible to frame a reversible plow, the Plow frame can be swiveled over the turning axis, to swivel from the tractor seat. By the invention is to provide a reversible plow with which this is possible.

The plow according to the invention of the type mentioned is characterized in that in on As is known, on the plow frame, one end of an adjusting rod that can be displaced from the tractor seat is articulated by means of an all-round movable joint (first joint), while the other At the end of this control rod also by means of an articulated joint (second joint) that can be moved in all directions a lateral pivoting of the plow frame serving pivot lever or one for actuation such a pivot lever serving member is articulated, the second joint opposite a going through the axis of the turning shaft, lying in the middle of this shaft horizontal plane is offset by about half the turning angle in the direction of the previously performed plow rotation, while the first joint at least approximately at the level of the turning axis and in front of the front end of the plow frame.

709 607/127

In the width adjustment device according to the invention, the second articulation point is turned around the turning angle (in the case of a reversible plow thus pivoted by about 180 °) around the turning shaft, while the first hinge point is relative to the Plow frame maintains its position. This hinge point is (in the case of the design of the adjusting member as Push rod) only during the actuation of the width adjustment essentially in the longitudinal direction of the Plow moved. As a result of the inventive adjustment of the second hinge point so that it is around half the pivoting angle is offset from the center plane of the pivoting movement, one obtains the smallest possible angle changes between the push rod and the second joint.

Through the invention, a width adjustment device was created that the application of the multiple preferred reversible plow design in which the plow frame is pivoted over the turning axis will allow.

The adjusting rod is advantageously straight. In this case, their point of articulation is in the Seen in plan, offset from the axis of the turning shaft to the side after which the second Pivot point swings out during turning. With this position of the first hinge point can also a straight adjuster, e.g. B. a push rod, pivot freely around the turning shaft. With such curved design of the adjusting rod that this does not intersect the turning shaft, but could the first hinge point can also be attached so that it is not or only slightly laterally opposite the Turning shaft is offset.

The adjustment rod can have a wide variety of shapes. So she can z. B. designed as a push rod be that can be moved by hand, with this sliding movement of the plow frame is pivoted. The adjusting rod can, however, also be a spindle which is inserted into one provided on the plow frame Mother intervenes. The adjustment takes place here by turning the spindle. The adjusting rod is therefore not shifted lengthways, but only rotated. The adjusting rod can also be designed in two parts be e.g. B. consist of spindle and threaded sleeve or nut. By turning the threaded sleeve or the spindle, the control rod is shortened or lengthened. By this shortening or lengthening the pivoting movement of the plow frame is caused. Finally, the adjustment rod also be a drive shaft with which an adjusting spindle mounted on the turning shaft is driven which engages in a nut provided on the plow frame.

Details of these possibilities and other inventive details are set forth in the following Description of exemplary embodiments on the basis of the drawing and from the subclaims emerge. In the drawing is

Fig. 1 is a rear view of a plow front frame of a mounted reversible plow with a width adjustment device according to the invention,

Fig. 2 is a plan view of the device according to Fig. 1,

Fig. 3 is a side view of the plow according to Fig. 1 in the direction of the arrow III in Fig. 1,

A b b. 4 shows a width adjustment according to a second embodiment in partially sectioned Side view,

Fig. 5 is a corresponding side view of a third embodiment,

A b b. 6 shows a side view of a fourth embodiment and

A b b. 7 is a side view of a fifth embodiment.

The reversible plow consists essentially of the plow front frame designated as a whole by 1 and the plow frame designated as a whole with 2

ίο which the plow bodies 3, 3 'are attached. The plow front frame 1 is designed as a coupling 4, on the pin 5 for coupling to the lower link and Bores 6 are provided for attachment to the upper link of a three-point linkage. In the paddock 4 a turning shaft 8 is rotatably mounted in a hub 7. This turning wave is even closer to descriptive way of the plow frame 2 attached. The plow frame 2 is non-rotatable with the turning shaft 8 connected, so that when the turning shaft 8 is rotated, the plow is also rotated. With a reversible plow the angle of rotation is about 180 °. Such a turning movement will be if before for example the right turning Köeper 3 had been used for plowing, now the left turning ones Body 3 'brought into working position. To adjust the width, the plow frame 2 pivoted laterally relative to the turning shaft 8. After such a pivoting, the plow frame is standing 2 at a different angle to the turning shaft 8 than before the pivoting. But pulls when plowing the plow turns itself back in such a direction that the plow body is seen in the direction of travel are in the right position. This adjustment movement of the plow is possible because the three-point linkage, whose joints are generally ball joints, can be shifted laterally.

The pivoting movement of the plow frame 2 with respect to the turning shaft 8 takes place around the pivot point 9 instead of. The hinge pin 9 can be used to adapt the plow to the tractor either in one of several provided bolt holes 10 are inserted. Instead of repositioning the bolt 9, a Articulation point 11 can be moved transversely to the plow by means of a spindle 12. To adjust the However, this device is not used for plowing while driving.

A boom 13 is provided on the turning shaft 8 in a rotationally fixed manner. At the outer point of this boom is an angle lever 15 is rotatably mounted by means of a hinge pin 14. On the shorter arm 16 of this angle lever a bolt 17 designed as a nut is provided, into which a spindle 18 engages. The spindle 18 is axially immovable in the joint 19, but is mounted so that it can pivot relative to the plow frame 2. By The plow frame 2 can rotate the spindle 18 by means of the hand crank 20 relative to the angle lever 15 be pivoted. If the angle lever 15 is held in place, the plow frame leads pivoting around point 9 or 11. This adjustment device is also not used during the Plowing actuated, but allows a shift of the width adjustment range, within which the Width adjustment can be made from the tractor seat.

The device described below is used to adjust the width during plowing. Through this changing slope can be taken into account when plowing a furrow. So you can

Claims (1)

5 6 thus also in such terrain, in which a furrow is kept axially immovable. It interacts with a further bevel gear 41 that is plowed along different slopes, which must achieve a uniform furrow width at the bottom. At the end of a shaft 43, which can be rotated by means of a crank 42, the long lever arm 21 of the angle lever 15 is seated. By rotating the shaft 43, the spindle 38 is steering 22 a push rod 23 is articulated. The joint 5 is displaced in its longitudinal direction, whereby the 22 is shown here as a simple pin joint. Tat push rod 35 is also moved. However, this must be a joint that can move in all directions; further adjustment processes take place in the same way as with, for example, a cardan joint or a ball joint, the embodiment according to FIGS. 1 to 3.
be turned. The joint 22 is opposite to the In the embodiment according to A b b. 5 is on the horizontal plane 30, which passes through the center point of a push rod a threaded spindle 44 ver-31 of the turning shaft, offset by the angle α. turns. This is also with an all-round movable joint 45 in the vicinity of the coupling 4 and with a game of a reversible plow, in which the further joint 46 movable in all directions at the plow turning angle is about 180 ° the frame is hinged. The joint 45 is here at an insertion angle of 90 °, half of the entire 15-fold way by two intertwined turning angles, which is equal to 2 α. In this way, rings are formed, while the joint 46 extends through a joint 22 that is formed after the ball nut 47 has been passed through, which engages in a turning movement below the turning shaft 8 to form groove 49 by means of a projection 48. The fixed part is coming. The joint movements in the joint 45 on all sides are located on a shaft 50. The movable joint 22 is therefore as small as possible. 20 of this shaft sits a bevel gear 51 which meshes with the The front end of the push rod 23 is by means of a bevel gear 52. This is also movable in all directions by means of a shaft 53, and the one on which a crank (not shown) is seated, for the sake of simplicity, is shown as a pin joint 1 and 3) so that the spindle 44 is rotated. Fixed as a result of the screwing. The adjusting lever 25 is by means of a bolt 25 ben of the spindle 44 in the prevented from rotating 26 stored on the paddock 4. On the ball nut 47 protruding upwards, it is zodened to the coupling Arm of the adjusting lever 25 is a locking device gene or pushed away from this. This ball nut 27 is provided, which can be seated again on an angle lever 15 with a notch bow 28 so that cooperates. The adjusting lever 25 can be engaged in the adjusting movement as shown in FIGS. 1 to 3 one of the notches 29 of the notch arch 28 noted 30 wrote going on. will. In the embodiment according to A b b. 6 is the device according to A b b. 1 to 3 adjusting member works by a threaded spindle 54 and one as follows: First, the plow is formed by means of the Um-threaded sleeve 55. The spindle 54 is adapted to the tractor in a plug-in device 9, 10 and / or the spindle adjustment (not shown) via a joint 54 'in treatment 12. An approximate 35 turn offset, e.g. B. by a drive, as he can width adjustment (range shift) is shown in Fig. 5. The threaded sleeve can be made by means of the spindle 18. During the movement of the joint 56, which is movable in all directions, the working width is articulated by means of the angle lever 15. Adjusted by turning the spindle 25 to the slopes of the ground. In the event of a movement, the adjusting member is lengthened or shortened by the adjusting lever 25 in the direction of the coupling 4 40 and thereby the angle lever 15 is pivoted, whereby (arrow 32) the push rod is then caused in the direction of the arrow by the adjusting movement, les 33 postponed. As a result, the angle lever in the embodiment according to Fig. 7 is pivoted 25 in the direction of arrow 34, the adjusting member by a square profile 57 and a plow frame 2 with its end lying in front of the pivot point 9 cooperating with this square profile in the plan according to Fig. 2 seen, 45 58 formed. The parts 57 and 58 are longitudinally displaceable to the left, that is, pivoted counterclockwise, but are coupled to one another in a rotationally fixed manner. The four will. In the event of a movement of the adjusting lever 25 in the angular profile 57 via a direction which is again opposed by two rings, the pivoting movement, which is formed on all sides, would take place at a movement in the other sense. Shaft 60 mounted in coupling 4 is coupled by the shaft 60. Shifting the lever in the direction of arrow 32 is 5 °. On the shaft 60 sits a bevel gear 61, which increases the groove width with one. When turning the bevel gear 62 meshes. The bevel gear 62 can be rotated with a shaft 63, as already described by Pfluges. The second shaft 8. It is clear that during this movement the joints 64 (here also formed by two rings) guide 22, 24 perform spatial movements, so that with a shaft 65 mounted on the turning shaft, these joints can be moved in all directions have to. 55 coupled, a worm 66 sits on the shaft 65, in order to prevent the movement of the push rod 23 around the turning point, which meshes with a worm wheel 67. To enable the shaft 8 around, the hinge point 24 worm wheel 67 sits non-rotatably on a thread opposite the turning shaft 8 laterally offset, and spindle 68. The threaded spindle 68 engages in a plow frame provided on the turning shaft 8 so far that the push rod the turning shaft 8 is not shown Mother is not touched in any phase of movement. 60 a. It is clear that by rotating the spindle 68. In the embodiment according to Fig. 4, one of the plow frames is used on the turning shaft is made possible.
and on the other hand in the vicinity of the paddock 4 at one longitudinally displaceable, but non-rotatable in the 6 ₅ claims: Coupling 4 mounted spindle 38 is attached. On the 1st reversible plow, in which the plow body carries Threaded part 39 of this spindle is a bevel gear lowing frame with respect to the plow frame, for. B. trained nut 40 is provided. The nut 40 is opposite the one on the three-point linkage Coupling to be coupled to the tractor, is laterally adjustable by means of an actuator which can be operated from the tractor seat (width adjustment), characterized in that, in a manner known per se, on the plow frame (4), one end of an adjusting rod (23, 35 or 44, 54) which can be displaced from the tractor seat , 57, 58) is articulated by means of an all-round movable joint (24, 37, 45, 59) (first joint), while the other end of this control rod is also articulated by means of an all-round movable joint (22, 36, 46, 56, 64) ( second joint) is articulated to a pivoting lever (15) used to pivot the plow frame (2) to the side or to a member (66) used to actuate such a pivoting lever (68), the second joint (22, 36, 46, 56, 64 ) is offset from a horizontal plane (30) passing through the axis (31) of the turning shaft and lying in the middle of this shaft by approximately half the turning angle (a) in the direction of the previously performed plow rotation, wä while the first joint (24, 37, 45, 59) is at least approximately level with the turning axis and in front of the front end of the plow frame (2). 2. Plow according to claim 1, characterized in that the adjusting rod (23, 35, 44; 54, 55, 57, 58) is straight, and that its first hinge point (24, 37, 45, 59) in plan seen opposite the axis (31) of the turning shaft (8) is offset to the side towards which the second pivot point (22, 36, 46, 56, 64) swings out during turning. 3. Plow according to one or both of the preceding claims, characterized in that that the adjusting rod is a push rod (23), the first joint (24) of which with a displacement device is connected, with which the joint (24) is displaceable relative to the plow frame (4), preferably in the longitudinal direction or with a large component in the longitudinal direction. 4. Plow according to claim 3, characterized in that the displacement device is in on in a known manner mounted on the plow frame (4), preferably cooperating with a notch arch (28) Control lever (25) is (Fig. 1 to 3). 5. Plow according to claim 3, characterized in that the displacement device is an axially in the plow frame (4) displaceable spindle (38) on which the push rod (35) is articulated, the spindle (38) in a known manner by rotation an axially immovably mounted nut (40) is displaceable (A b b. 4). 6. Plow according to claim 5, characterized in that the nut (40) is a bevel gear, which meshes with another bevel gear (41), which latter bevel gear (41) on a manually from the tractor seat from rotatable spindle (43) sits (A b b. 4). 7. plow according to one or both of claims 1 and 2, characterized in that in In a manner known per se, the adjusting rod is a rotatable shaft (44, 54, 57), whose in the direction of travel seen front joint (45, 54 '; 59) connected to a rotating device (51, 54 ", 61) is, with which the shaft can be rotated about its longitudinal axis, for example by means of a bevel gear drive (52, 51; 62, 61; Figs. 5 to 7). 8. Plow according to claim 7, characterized in that in a known manner the Shaft is a spindle (44) which is inserted into a nut mounted on the plow frame, e.g. B. a ball nut (47), engages (Fig. 5). 9. Plow according to claim 7, characterized in that the shaft is a spindle (54) which into a non-rotatable threaded sleeve engaging the plow frame by means of the second joint (56) (55) engages (Fig. 6). 10. Plow according to claim 7, characterized in that the shaft of the sleeve (58) and bolt (57), which are rotatably, but longitudinally displaceably coupled to one another, and that the sleeve (58) with its joint (54) on a worm shaft (65) mounted on the turning shaft (8) is articulated, which meshes with a worm wheel (67), which rotatably on a for pivoting the plow frame (2) serving and in a non-rotatably mounted on the plow frame (2) nut engaging spindle (58) sits. 11. Plow according to one or more of the preceding claims, characterized in, that the second joint (22) on one arm (21) (first arm) one on the turning shaft (8), is articulated via a bracket (13) mounted angle lever (15), the other arm (16) (second arm) is connected to the plow frame (2). 12. Plow according to claim 11, characterized in that the second arm (16) of the angle lever (15) for shifting the area via a movable joint (17) with the plow frame (2) is connected, which joint (17) is displaceable by means of a spindle (18) mounted on the plow frame (2) is (Fig. 1 and 3). Considered publications:
German patents No. 1 171 192, 927 242, 554 598; German utility model No. 1 854 970, 841 174, 1,829,582; British Patent No. 735 452. 1 sheet of drawings 709 607/127 6. 67 © Bundesdruckerei Berlin