GB2144312A

GB2144312A - Mounted or semi-mounted rotary plough

Info

Publication number: GB2144312A
Application number: GB08414256A
Authority: GB
Inventors: Stefan Knabl
Original assignee: Vogel & Noot Landmasch
Current assignee: Vogel & Noot Landmasch
Priority date: 1983-08-05
Filing date: 1984-06-05
Publication date: 1985-03-06
Also published as: DE8416930U1; GB8414256D0; DE3420670C2; FR2550048A1; IT8404845A1; IT8404845A0; GB2144312B; FR2550048B1; AT378655B; IT1180277B; ATA285383A; DE3420670A1

Abstract

A rotary plough with a plough frame 8 being rotatably supported in an attaching frame 100 by a turnover means 7 and with an adjusting system for lateral pivoting of the plough frame 8, which system comprises a first adjusting element 1 for changing the angle position of the plough frame in relation to the driving direction and a second adjusting element 2 for adjusting the point of traction, the two adjusting elements together with a connecting rod 3 controlling the angle of the plough bodies 106 being connected together at a common element 4. <IMAGE>

Description

SPECIFICATION Mounted or Semi-mounted Rotary Plough The invention relates to a mounted or semimounted rotary plough with an attaching frame assemblable to a traction vehicle, the plough frame being rotatably supported in the attaching frame by a turnover means, and with a means for lateral pivoting of the plough frame around an axis essentially perpendicular in operating position by means of an adjusting system connecting the plough frame to the turnover means, with cupshaped fittings in a number corresponding to the number of the furrows enclosing the frame, on which fittings the plough beam or tree and the plough base or bottom are provided, which fittings are pivotable around axles essentially perpendicular in operating position and connected to one another by means of a steering rod.A construction of this type is necessary in order to permit an infinitely variable adjustment of the width of cut of each individual plough base and thus of the total width of cut of the plough. An adjustment of the width of cut, however, affects the adjustment of the point of traction.

It is the object of the invention to improve a mounted or semi-mounted rotary plough of this type by making it possible to adjust the width of cut and point of traction (i.e. to make the resultant of the forces acting on the plough coincide with the trailing axle) independently of one another.

This ob,ect is achieved according to the invention by providing a first length-adjustable adjusting element in order to change the angle position of the plough frame in relation to the driving direction, one end of said first adjusting element being mounted articulatedly in relation to the plough frame and the other end of said first adjusting element being supported on a point of application or any structural element with which one end of a second length-adjustable adjusting element for adjusting the point of traction, whose other end is pivotally attached to the turn-over means, as well as the end of a connecting rod is pivotally connected, whose other end is directly or indirectly articulated to the steering rod.

According to a first embodiment of the invention, the plough frame can be connected to the turnover means by means of two telescopically displaceable formed pipes; the outer formed pipe which is articulated to the turnover means is provided with a swinging means pivotally supported around an axis perpendicular in operating position of the plough.

On this swinging means, one each end of the two adjusting elements and one end of the connecting rod are articulated, with the other end of the first adjusting element pivotally supported on the inner formed pipe articulated to the plough frame and the other end of the second adjusting element pivotally supported on the outer formed pipe, while the other end of the connecting rod is articulated to the steering rod via a gear lever.

Another embodiment of the invention is characterised in that it is provided with a swinging means whose one end is pivotally supported on the turnover means around an axis approximately perpendicular in operating position of the plough, while one each end of the two adjusting elements and one end of the connecting rod are articulated to the other end of said swinging means; the other end of the first adjusting element is pivotally supported directly on the plough frame, the other end of the second adjusting element is pivotally supported on the turnover means and the second end of the connecting rod is directly articulated to the steering rod.

According to a third embodiment of the invention, an axle approximately perpendicular in operating position of the plough is slidably supported in a slot guide fixedly connected to the turnover means. To this axle, one each end of the two adjusting elements and one end of the connecting rod are articulated, with the other end of the first adjusting element directly articulated to the plough frame and the other end of the connecting rod directly articulated to the steering rod.

A particularly practical first adjusting element for adjusting the width of cut is a pressureactuated working cylinder, in particular an hydraulic cylinder-piston-unit, a spindle arrangement, a turnbuckle or a remotely controllable adjusting element.

According to a further embodiment of the invention, the second adjusting element comprises at least one releasable clamping means connectable to an actuating member on the traction vehicle by means of a traction element, preferably a cable line; in this case, the adjustment of the width of cut and of the point of traction can be effected from the driver's seat of the traction vehicle without having to dismount.

Favourably, the adjusting element is provided with at least one pivotally supported clamping jaw engageable with a rack or the like and preferably spring-loaded. The clamping jaw is advantageously actuated by an adjusting lever connected to the traction element. The releasable clamping means can also be of the hydraulic and/or pneumatic type.

The invention is described in detail by means of several embodiments with reference to the accompanying drawings.

Figure 1 shows a first embodiment of a mounted rotary plough according to the invention; Figure 1 A shows a detailed view according to arrow A in Figure 1; Figure 2 shows a top view of a second embodiment of a mounted rotary plough according to the invention; Figure 3 shows a top view of a third embodiment of a mounted rotary plough according to the invention; Figure 3A shows a detailed view according to arrow A in Figure 3; Figure 4 shows a clamping or adjusting element usable for the mounted rotary plough according to the invention in enlarged scale and Figure 5 shows a section along line VV in Figure 4.

The mounted rotary plough shown in Figure 1 essentially consists of an attaching frame 100 having connections 102, 103, 104 for the upper and lower connections of the three-point hoisting unit of a traction vehicle not shown in detail, of a plough frame 8 with several plough shares 106 and an hydraulic turnover means 7 for the plough frame 8. The plough frame 8 is pivotally supported as a whole unit in the attaching frame 100 around an axle 108 essentially horizontal in operating position. The plough frame 8 is articulated on its one end to the turnover means 7 by means of an axle 109 essentially perpendicular in operating position and on its other end to the turnover means 7 by means of a support 110 acting between the plough shares 106.

The support 110 consists of two telescopically displaceable formed or profiled pipes 5, 6 of rectangular, in particular square, cross section of which the outer formed pipe 5 is articulated to the turnover means 7 by means of an axle 113 which is essentially perpendicular in operating position, while the inner formed pipe 6 is articulated to the plough frame 8 by an axle 114 also essentially perpendicular in operating position.

Axle 113 is arranged at a distance from axle 109 and axle 114 extends essentially vertically in relation to the central axis of the plough frame 8, in the embodiment shown, but could also extend differently.

The plough shares 106 with the plough beams or plough trees 106' are attached to cup-shaped elements 9 enclosing the plough frame 8. The cup-shaped elements 9 are pivotally supported on the plough frame 8 around axes of rotation 11 6 essentially perpendicular in operating position and articulated to a steering rod 1 7 at a distance from these axes of rotation 11 6. The steering rod 17 extends essentially in the direction of the plough frame 8 and connects the cup-shaped elements 9 to one another. The articulation between the steering rod 1 7 and the cup-shaped element 9 bears the reference number 118. The pivoting range of the cup-shaped elements 9 on the plough frame is limited by a slot-pivotcombination.

The telescopic support 110 connecting the turnover means 7 and the frame 8 is provided with a turnbuckle or spindle 1 for adjusting the width of cut. Spindle 1 is articulated at 1' to the inner pipe 6 and at 1 via a swinging means 4 to the outer pipe 5. Also articulated to the swinging means 4 are the adjusting element for the adjustment of the point of traction, shown in Figure 1 and 1 A as a turnbuckle or spindle 2 which is articulated on the other side at 2' to the outer pipe 5, and a connecting rod 3 which is articulated to the steering rod 17 at 2" and 3" via a gear lever 16 articulated to the plough frame 8.

By actuating the spindle 1 , the frame 8 is pivoted and the steering rod 1 7 is correspondingly displaced by the pivoting motion around the perpendicular axle 109 via the connecting rod 3. Shortening of the spindle 1 (pivoting of the frame 8 in clockwise direction around axle 109) brings about an increase in the width of cut, lengthening of the spindle causes a decrease in the width of cut. The swinging means 4 are firmly held in their position by means of spindle 2. Due to an appropriate geometric layout, the entire adjusting zone of the device is disposed approximately parallel in relation to the driving direction.In order to carry out the required adjustment of the point of traction, spindle 2 must be actuated, whereby the inner pipe 6 is correspondingly displaced over spindle 1 and the angle of the device in relation to the driving direction is changed as needed.

At the same time, the swinging means 4 is moved in such a manner that the connecting rod 3 and thus the steering rod 17 does not move.

The desired frame angle (point of traction) is obtained by first releasing the spindle 2 and by adjusting the frame angle at lowered plough standing in the furrow by corresponding front and rear movement of the traction vehicle until the desired state is achieved. For this purpose, spindle 2 is advantageously replaced by a clamping or adjusting element to be described in detail in the following (Figure 4 and 5). By additional replacement of the spindle 1 by a hydraulic cylinder, the adjustments required for adjusting the width of cut and point of traction can also be carried out from the driver's seat of the vehicle without having to dismount.

Due to the fact that the swinging means 4 is pivotally connected, on the one hand, to the outer pipe 5 by means of an axle 4' being essentially perpendicular in operating position, and, on the other hand, to one each end of spindle 2, spindle 1 and connecting rod 3 are pivotally connected to the swinging means 4 by an axle 4" essentially perpendicular in operating position, the plough frame 8 is pivoted on adjustment of spindle 1 (width of cut), while the position of the swinging means 1 attached to the outer pipe 5 remains stationary in relation to outer pipe 5, so that the steering rod 17, which is connected to the connecting rod 3 by means of lever 16, is displaced.

On adjustment of the point of traction (spindle 2), the frame 8 is pivoted without any movement of the cup-shaped elements 9 on the frame 8, by actuating the spindle 2 which is connected on one side to the outer pipe 5 and on the other side to the swinging means 4, which is articulated to the outer pipe 5; the swinging means 4 is pivoted by spindle 2 in such a manner that neither the steering rod 17 nor the cup-shaped elements 9 are moved. The first adjustment is thus not affected by the second adjustment.

Figure 2 shows a further embodiment of the invention, like parts bearing the same reference numbers as those shown in Figure 1 and 1 A. The following description only relates to deviations from the embodiment according to Figure 1.

Figure 2 shows a mounted or semi-mounted rotary plough of the type initially mentioned in which the width of cut is adjusted by means of a turnbuckle or spindle 13 articulated at 15' to the frame 8, on the one hand, and with a further turnbuckle or spindle 12 and the connecting rod 15, on the other hand, by means of a swinging means 14 articulated at 14' to the turnover means 7'. For adjusting the point of traction, a turnbuckle or spindle 12 is articulated to the turnover means 7 and 7' at 12' and to the swinging means 14 at 1 5'.

For adjustment of the width of cut, spindle 13 is actuated and correspondingly pivots the frame 8. The pivoting motion of frame 8 around the perpendicular axle 109 causes a corresponding displacement of the connecting rod 1 5 and the steering rod 1 17 articulated thereto in the central articulation point 1 8. A shortening of the spindle 13 brings about an increase in the width of cut, a lengthening of the spindle 13 causes a decrease of the width of cut. The swinging means 14 is firmly held in position by the spindle 12. Due to an appropriate geometric layout, the device is positioned approximately parallel in relation to the driving direction in the entire adjusting zone.

In this embodiment, just as mentioned in context with Figure 1, it is also possible to replace spindle 13 by a hydraulic cylinder and spindle 12 by a clamping or adjusting element to be described in the following (Figure 4 and 5), whereby the adjustment of width of cut and point of traction can be carried out from the driver's seat of the traction vehicle without having to dismount.

In the embodiment according to Figure 2, on the one hand, the swinging means 14 is articulated to the turnover means 7' by an axle 14' essentially perpendicular in operating position and, on the other hand, the spindle 12, the spindle 13 and the connecting rod 3 are each articulated by one of their ends to the swinging means 14 by means of an axle 15' essentially perpendicular in operating position.

On adjusting the spindle 13, the plough frame 8 is pivoted, the position of the swinging means 14 articulated to the turnover means 7, 7' at 14' remains stationary and the connecting rod 1 5 connected to the steering rod 1 7 is correspondingly displaced.

On adjusting the point of traction, the frame 8 is pivoted without moving the cup-shaped elements 9 on the frame 8 by actuating the spindle 1 2 which is articulated to the turnover means 7, 7' at 12' and to the swinging means 14 at 14'.

Figure 3 and 3A show a third embodiment of the invention in which identical parts bear like reference symbols to those used in Figure 1 and 2.

In the following, only deviations from the embodiments according to Figure 1 and 2 are described.

Figure 3 shows a mounted or semi-mounted rotary plough of the type initially mentioned in which a turnbuckle or spindle 21 6 is provided for the adjustment of the width of cut. Spindle 21 6 is articulated to frame 8 at 216' and to a further turnbuckle or spindle 217 and a connecting rod 220 by means of an axle 218 essentially perpendicular in operating position, in an elongated hole 218' whose supporting plate 219 is welded to the turnover means 7, 7'.

For adjustment of the point of traction, the spindle 217, which is articulated to the turnover means 7, 7' at 217', on the one hand, and to the perpendicular axle 218, on the other hand, is actuated. For adjustment of the width of cut, the spindle 216 is actuated, which causes a corresponding pivoting of the frame 8 and the displacement of the connecting rod 220 by the pivoting movement around the perpendicular axle 109. A shortening of the spindle 21 6 causes an increase in the width of cut, a lengthening of the spindle brings about a decrease in the width of cut. The perpendicular axle 218 is firmly held in its position by means of spindle 217. Due to an appropriate geometric layout, the device extends approximately parallel in relation to the driving direction in the entire adjustment zone.The elongated hole 218', in analogy to the swinging means 4 in Figure 1 and swinging means 14 in Figure 2, leaves the axle 21 8 a certain play 1 in relation to the supporting plate 219. The articulation of one each end of the spindles 216 and 217 and the connecting rod 220 on the axle 218 is particularly clear from Figure 3A.

In this embodiment, -as already mentioned in context with Figure 1 and 2,-spindle 21 6 may be replaced by an hydraulic cylinder and spindle 217 may be replaced by a clamping or adjusting element to be described in the following (Figure 4 and 5). The adjustment of the width of cut and point of traction can be carried out from the driver's seat of the vehicle without having to dismount.

Figure 4 and 5 show one of the previously mentioned clamping or adjusting elements which may be used instead of the spindle 2 in Figure 1, the spindle 12 in Figure 3 or the spindle 217 in Figure 3, in enlarged scale.

The adjusting element comprises a rack 21 axially displaceable in a sleeve 20 and a releasable clamping means 22 consisting of two clamping jaws 23 engageable with the rack 21.

The clamping jaws are pivotally supported and loaded by means of a spring 26 in axial direction of the rack. The clamping jaws 23 are actuated by a lever 24 which is actuated by a traction element 25, in particular a cable line, by means of an actuating member not shown in detail, preferably a handgrip, from the driver's seat of the traction vehicle. The sleeve 20 and the rack 21 are each provided on one end with an eye 27 or 28, eye 27 articulating the sleeve 20 to the formed pipe 5 of the support 110 in Figure 1 and eye 28 articulating rack 21 to the swinging means 4 in Figure 1. In analogy, in the case of Figure 2, eye 27 is connected to articulation axle 15' and eye 28 is connected to articulation axle 12' in the turnover means 7', while in the case of Figure 3, eye 27 is connected to axle 218 and eye 28 to axle 217' in the turnover means 7'.

By means of this adjusting element, the position of the swinging means 4 in Figure 1 (or the swinging means 14 in Figure 2 or the axle 218 in Figure 3) can be adjusted from the driver's seat by releasing the releasable clamping means 22 and pushing the rack 21 out of the sleeve 20 to the desired extent by means of spring 26 or putting it in the desired position by careful front and rear movement of the traction vehicle, whereupon the clamping means 22 are again fixed from the driver's seat.

The clamping or adjusting means does not necessarily have to comprise mechanical clamping elements such as clamping jaws, but may also contain hydraulic or pneumatic clamping devices. The clamping effect can be a formlocking or a force-locking one. Essential is merely the fact that the releasing and locking of the clamping device can be effected from the driver's seat of the traction vehicle.

Claims

1. Mounted or semi-mounted rotary plough with an attaching frame assemblable to a traction vehicle, the plough frame being rotatably supported in the attaching frame by a turnover means, and with a means for lateral pivoting of the plough frame around an axis essentially perpendicular in operating position by means of an adjusting system connecting the plough frame to the turnover means, with cup-shaped fittings in a number corresponding to the number of the furrows enclosing the frame, on which fittings the plough beam or tree and the plough base or bottom are provided, which fittings are pivotable around axles essentially perpendicular in operating position and connected to one another by means of a steering rod, in which a first iengthadjustable adjusting element is provided in order to change the angle position of the plough frame in relation to the driving direction, one end of said first adjusting element being mounted articulatedly in relation to the plough frame and the other end of said first adjusting element being supported on a point of application or any structural element with which one end of a second length-adjustable adjusting element for adjusting the point of traction, whose other end is pivotally attached to the turnover means, as well as the end of a connecting rod is pivotally connected, whose other end being directly or indirectly articulated to the steering rod.

2. A plough according to claim 1, wherein the plough frame is connected to the turnover means by means of two telescopically displaceable formed or profiled pipes, the outer formed pipe, which is articulated to the turnover means, being provided with a swinging means pivotally supported around an axle approximately perpendicular in operating position of the plough, on which swinging means one each end of the two adjusting elements and one end of the connecting rod are articulated, with the other end of the first adjusting element pivotally supported on the inner formed pipe articulated to the plough frame and the other end of the second adjusting element pivotally supported on the outer formed pipe, while the other end of the connecting rod is connected to the steering rod via a gear lever.

3. A plough according to claim 1 , wherein a swinging means is provided and pivotally supported on the turnover means around an axis approximately perpendicular in operating position of the plough, while one each end of the two adjusting elements and one end of the connecting rod are articulated to the other end of said swinging means with the other end of the first adjusting element pivotally supported directly on the plough frame, the other end of the second adjusting element pivotally supported on the turnover means and the second end of the connecting rod directly articulated to the steering rod.

4. A plough according to claim 1 , wherein an axle approximately perpendicular in operating position of the plough is slidably supported in a slot guide fixedly connected to the turnover means, to which axle one each end of the two adjusting elements and one end of the connecting rod are articulated, with the other end of the first adjusting element directly articulated to the plough frame and the other end of the connecting rod directly articulated to the steering rod.

5. A plough according to any one of claims 1 to 4, wherein the first adjusting element for adjusting the width of cut is an element comprising a pressure-actuated working cylinder, an hydraulic cylinder-piston-unit, a spindle arrangement, a turnbuckle or a remotely controllable adjusting element.

6. A plough according to any one of claims 1 to 5, wherein the second adjusting element comprises at least one releasable clamping means connectable to an actuating member, in particular a handgrip, on the traction vehicle by means of a traction element, in particular a cable line.

7. A plough according to claim 6, wherein the adjusting element is provided with at least one pivotally supported clamping jaw actuable by means of the traction element, movable to engage with a rack or the like and preferably loaded by means of a spring.

8. A plough according to claim 7, wherein the clamping jaw is actuated by means of an adjusting lever connected to the traction element.

9. A plough according to any one of the claims 6 to 8, wherein the releasable clamping means is an hydraulic and/or pneumatic clamping device.

10. A plough, substantially as hereinbefore described with reference to the accompanying drawings.