DE102007004256A1 - Disk mower for tractor, has modular assembly of central unit and module, which are developed with disk washer as cutter, where module is driven by central unit, and lies adjacent to central unit - Google Patents

Abstract

The disk mower (1) has a modular assembly of a central unit and a module. The central unit and the module are developed with a disk washer (9) as cutter. The module is driven by the central unit. The module is lying adjacent to the central unit. A drive of the central processing unit and the module takes place by an angle drive. Independent claims are also included for the following: (1) a disk washer is developed with two cutters (2) a remote-controlled device, which has a modular assembly.

Description

The The present invention relates to a modular lawnmower Construction.

Out In the prior art mowers are the most diverse Kind for the agriculture and the green areas and parks known.

The DE 6921324 U1 describes a mower in which the co-operating with the cutting blades teeth of parallel to each other Einweisfingern, which are in sliding contact with the cutting teeth. Since the cutting blades rub on the counter cutting forming Einweisfingern, the cutting speed is very limited, so that the motor lawn mower for larger powers, as z. B. for the green fodder crop, can not be used.

The EP 57936 B1 discloses rotary mower with at least one frame frame mounted therethrough, and about a substantially vertical axis rotationally driven pulley, which is occupied over its circumference at equal intervals with the writing radius superior with cutting blades, and fixed to the frame in the front half of the disc , the front semicircle described by the cutting blades, substantially in the cutting direction and cooperating with the cutting blades teeth. These are with a frame-fixed base plate, wherein the teeth consist of spaced apart parallel to the Mährichtung pointing diameter line of the disc arranged U-shaped fingers whose legs lie one above the other in the vertical direction and of which at least one leg attached to a frame-fixed support, and that the legs gripping the circular ring described by the cutting knives fork-shaped with external connecting webs, and so far from the cutting blades that they can move without contact between the legs. A disadvantage of this design is the complicated structure, which also leads to downtime in the bending of the fork-shaped connecting webs.

From the DE 1632823 is a rotary mower known a mower disc, which consists of a variety of parts, the mower must rest with the cutting blades on a support plate. Balancing weights are placed opposite the cutting blades to minimize deformation of the mower disc. In addition, the cutting blades are freely arranged by means of a leaf spring and a bolt. The mower plate is truncated cone shaped with an upward taper.

The working from the prior art mowing systems with about 1000 to 2000 revolutions per minute. Here, the Step basically not as a cut but mainly as Tear.

task It has been the object of the present invention to provide a modular expandable To provide plate mower that out a simple construction, and with low drive power too For long clippings a high mowing performance achieved. Furthermore, the cutting blades are interchangeable with little effort and just be under construction.

According to the invention solves this problem by the fact that the Tellermäher has a modular construction, wherein it consists of a central unit and consists of at least one module and with discs with knives are designed.

in the In the context of the present invention, the term "drive" z. B. about a PTO drive via a propeller shaft, hydraulically via a hydraulic motor, electromechanical Drive or similar drive variants.

In Another embodiment is the invention Plate mower provided with a self-sufficient drive. hereby can be advantageously ensured that too with smaller non-powerful tractors the Tellermäher invention works efficiently.

Of the Modular disc mowers according to the invention has next to the central unit on both sides in each case at least one Module powered by the central unit. In a preferred embodiment of the invention Plate mowers are two modules on both sides of the central unit driven. Advantageously, a very wide area be mowed, with low weight of the invention Contraption.

In one embodiment of the modular disc mower, the drive is effected by means of a pin shaft drive from the tractor, which leads via a propeller shaft to an angle gear. On the vertical down attaching shaft a double V-belt pulley is arranged, via which the individual disc washers are driven by means of V-belt pulleys. These V-belt pulleys are bolted to vertical shafts in stable, dust-free and dirt-free encapsulated bearings on the frame mower frame. On the underneath of the shaft, the washers in this version are fastened with rivets. Also screws or other releasable systems can be used, the replacement of the plate disc z. B. at regular material check or Zer ensure interference of the disc. As a result, the light, quick and easy replacement is advantageously possible in case of need. The central unit contains support wheels on both sides as well as the jib device, which can be operated manually. Other hydraulically or pneumatically assisting systems are also possible. The right and left arms are arranged around the central unit. In this embodiment, the distance between the dish washers and the bottom is fixed.

In a further embodiment of the invention modular plate mowers are the left and right side Modules with adjustable outer tube runners designed. The skids can additionally to the ground with a wider edition be designed to not to destroy the mowing ground or to leave deep tracks. You can also be designed so that it with a sliding Composition to be impregnated to achieve the effect. In another embodiment, not shown here can be found at the outriggers instead of the skids in this Be arranged area wheels. These can be as pure training wheels fixed with a wide profile be designed so as not to damage the lawn. In a further variant, the wheels are laterally pivotable arranged to a small turning circle of the invention To ensure device. In addition, you can these wheels manually or by means of suitable devices like mechanical, pneumatic or electronic devices in the height be moved to adapt to the ground. The plate mower is generally made of a frame-shaped Frame is arranged on the above the drive, and by a Plate separated from the V-belt pulleys and dish disks is. The wheels of the central unit are arranged so that this optionally along the central unit between the modules are arranged and before and behind the overlaps the dish discs are formed with the knives or on the outer Corner points of the central unit to fold down modules also to ensure a continuous cutting surface.

In a further embodiment of the invention Plate mower has this right and left of the central unit at least two other modules that are accessible via the central unit are driven. Here, the table mower according to the invention z. B. via an angle drive the panes of the central unit and power the modules.

In a further embodiment of the invention Plate mowers are the central unit and the modules separately over a motor with an oil pump or pneumatic or electric Units on the disc mower, for driving the V-belt pulleys and the dish was used.

In an embodiment is the invention Plate mower built from a frame-shaped frame, that allows minimal twisting. This is within the frame-shaped frame, a metal plate. This separates the drive units arranged above the plate from under the plate arranged with V-belt connected V-belt pulleys and the so-driven dish washers.

The frame-shaped frame can in a further embodiment be designed so that the frame in itself a twist of 5 to 25 ° allows for an insert on a non-ground-level terrain also easily done can, without the need for manual re-cutting. The twisting possibility depends on the size of the used Dish washers.

Of the according to the invention is in the Warpable design with an elastic Separating material between the drive and the V-belt pulley mounts Mistake. These include elastic plastic surfaces or tear-resistant woven or knitted fabric. The fortifications The V-belt pulleys via webs between arranged the longitudinal sides of the frame-shaped frame are.

advantageously, a negative pressure is generated by the wing during the rotation, which sucks the blades of grass to the cutting blade and a "straight" Cut possible. In addition, the crop is through the embodiment of the invention so small cut that a recording of the crop is not required is and it can be reused as fertilizer.

One Another object of the present invention is the dish washer with the knives. In the context of the present invention is under the term dish disc a geometric shape understood the is at least square, but also hexagonal, octagonal, ten- or may be high-octane or even round. It is preferred a round dish disk.

In an embodiment may be at all even-numbered corners a knife with wings and the odd ones Corners of the polygon can be arranged a knife without wings.

The dish washer according to the invention can be formed in a further embodiment with cutting knives, which are provided with additional folds as wings. The angle of the wings has a range of 15 ° to 85 °. Before zugt is an angle in the range of 25 ° to 65 °.

In a preferred embodiment is in the Dish washer around a round design. On the circumference are opposite the knives are arranged at a distance of 90 ° on the circumference, so that 4 knives are available. Two opposite ones Knives also have wings. The wings promote the negative pressure below the invention Dish washer, so that the cutting process is effective and the cut the crop again into the disc mower or pulled to the dish disc. As a result, the invention Crop cut so small that it is not afterthought still needs to be included in a collection container. Of Furthermore, this fine crop also serves as fertilizer, so that another step is eliminated.

The attachment of the knife with and without the wing on the dish can z. B. releasably by means of fastening screws, rivets or the like, or even be firmly connected to the dish washer such. B. about adhesive dots, welds or the like. The detachable connection between the disc and knife is preferred, as this allows a quick and easy replacement of any damaged or blunt knife ( 11 ). In addition, the mounting screws can be made with aluminum, which have a defined breaking strength, so that when hitting hard objects, the knife breaks off and remains within the shielded plate mower.

The dish washer according to the invention may consist of a Material from the group of metals, plastics, glass fiber reinforced Made of plastics, composites or the like become.

In In another embodiment, the dish washer and / or the knives are provided with a coating that is from the group corundum, carbonitrides or similar hard coatings or mixtures of these may consist of and on the material the group of metals, plastics, glass fiber reinforced Plastics, composites or the like of the disc and / or the knives, is applied. This will be advantageous ensures a longer running time of the dish washer.

Other coatings like Teflon or similar are only for the dish washer usable. The preferred material is a metallic material like stainless steels both for the dish washer as also used the appropriate knife. The preferred embodiment The knife with the dish washer is a detachable connection which allows a quick change. To the accident risk and to minimize the destruction of the plate mower, be z. B. in the releasable attachment as screws those made of aluminum with a defined breaking point value used, to prevent the destruction of the plate mower. The same applies to the storage of the dish washer. This Procedure is already longstanding in the construction of lawn mowers tested and in use.

Known are from the prior art simple lawnmower with a motor, which are provided with control electronics and on this way you can cut the lawn autonomously. The disadvantage is that until now only flat surfaces are mowed can. Slopes are not provided here. Furthermore, tractors for use are a cost factor. In case of damage during a mowing process This leads to downtime task, it has been therefore to provide an autonomous device that Cost-effective to manufacture, maintain and sturdy and easy to repair.

One Another object of the present invention has been a self-propelled or remote-controlled device with the invention Mower mower, which has a modular construction, wherein it consists of a central unit and at least one module and with dish discs which are designed with knives available to deliver.

According to the invention it is in the self-propelled or remote-controlled device around one, with a chassis with at least partially swiveling mounted wheels, with a plate mower, the has a modular construction, wherein it consists of a central unit and at least one module consists of a driving motor for Driving and driving the plate mowers and other aggregates for raising and lowering the plate mower modules and a Control device for steering the pivotally mounted wheels, wherein the control is autonomous or by means of a remote control. By means of the control, the cutting heights can be adjusted by means of the remote control. According to the invention with at least one camera facing the surface self-propelled or remote-controlled device with the invention Plate mower receives a signal to a computer unit be passed on. The visual signal may optionally be additional with an ultrasound IR, laser or similar Sensor coupled to the plate mowing unit to the surface conditions of the area to be mowed. This is inventively a Signal from the computer unit to the for height adjustment responsible systems, and the dish marshalling units lowered or raised.

Of the Sensor can be used individually or coupled with a displacement sensor that traveled Record route. In another invention Embodiment of self-propelled or remote-controlled Device with the plate mower according to the invention the device has a computer unit, which by means of GPS (Global Postioning System) exact area mowed should scan and, according to the available data, the plane edited and via a data comparison the progress of the Work transmitted to the computer unit. The computer unit can forward this data to an external computer, and the Log work history. With the GPS, the exact position of the Device to be determined according to the invention.

In Another embodiment is the invention self-propelled or remote-controlled device with a chassis designed that a change of the spring travel on the the partially pivoting wheels are arranged guaranteed. The distance from the chassis to the ground is in the range of 0.01 m to 0.9 m. This advantageously allows that smaller obstacles no longer have to be avoided. In a further embodiment variant of the invention Plate mower and at least one other Tellermähermodul in the self-propelled or remotely controlled device as well designed height adjustable. This will be advantageous the ground clearance increases and the risk of downtime of the Mowers minimized by repairs. In a further embodiment Both the spring travel on the partially swiveling Wheels regardless of the plate mowing unit and the modules are set. By means of the control over the computer unit is also a coupled device controller and plate mower guaranteed. additionally is also an individual control of the suspension travel of the individual wheels possible when mowing on a slope. This will overturn the self-driving or remote-controlled Device with the plate mower prevented.

In Another preferred embodiment of the present invention Invention has the self-propelled or remotely steered device with the plate mower according to the invention above the chassis at least one more camera on to the to scan mowing areas and, if necessary, the already mown area on the quality of the mowing process to check. Reworking is possible directly without much loss of time.

In a further embodiment of the invention modular plate mowers can the left and right side Modules attached to the self-propelled or remote-controlled device are arranged with adjustable outer skids be designed. The skids can additionally to the ground with a broader edition be designed to the to mowing underground not to destroy or deep Leaving traces. Also, they can be designed that way Be that with a slip-promoting composition be impregnated to achieve the effect. In a Another embodiment may be in the cantilevers arranged in place of the skids in this area wheels be. These can be used as pure training wheels fixed with a wide profile to the lawn area not to damage. In another variant, the Wheels arranged laterally pivotable to a small turning circle to ensure the device according to the invention. In addition, these wheels can be manual or by suitable means such as mechanical, pneumatic or electronic devices movable in height be to adapt to the underground. The plate mower generally consists of a frame-shaped frame on which is arranged above the drive, and by a Plate separated from the V-belt pulleys and dish disks is. The wheels of the central unit are arranged so that this optionally along the central unit between the modules are arranged and before and behind the overlaps the dish discs are formed with the knives or on the outer Corner points of the central unit to fold down modules also to ensure a continuous cutting surface.

In Another embodiment is the invention self-propelled or remote-controlled device has this right and to the left of the disc mower central unit at least two further modules, which are driven by the central unit. Here, the table mower according to the invention z. B. via an angle drive the panes of the central unit and power the modules.

In Another embodiment is the invention Self-propelled or remote-controlled device with other units that the central unit of the plate mower and the modules separately via a motor with an oil pump or pneumatic or electric units on the disc mower, to drive the V-belt pulleys and the disc washers.

In one embodiment, the plate mower according to the invention is constructed from a frame-shaped frame that ensures a minimum of distortion. This is within the frame-shaped frame, a metal plate. This separates the above the plate arranged drive units of arranged under the plate with V-belt connected V-belt pulleys and the thus driven disc washers. The frame with the drive unit for the plate mower can between the front and rear wheels of the invention itself moving or remotely controlled device be arranged so as to have the lowest possible center of gravity and to ensure the mowing even in rough terrain. The drive and control elements are correspondingly deep and dien protected against damage or designed encapsulated.

The frame-shaped frame can in a further embodiment be designed so that the frame in itself a twist of 5 to 25 ° allows for an insert on a non-ground-level terrain also easily done can, without the need for manual re-cutting. The twisting possibility depends on the size of the used Dish washers.

Of the according to the invention is in the Warpable design with an elastic Separating material between the drive and the V-belt pulley mounts Mistake. These include elastic plastic surfaces or tear-resistant woven or knitted fabric. The fortifications The V-belt pulleys via webs between arranged the longitudinal sides of the frame-shaped frame are.

The The following figures are intended to illustrate the invention Tell Tellermäher closer without this to limit to the statements.

To the better understanding of the invention will be in the following for example, and not limitation, two embodiments described, which are illustrated in the drawings.

From show the drawings:

1 Top view of a tractor and the plate mower according to the invention with drive and mower;

1a Top view of a tractor and the plate mower according to the invention only with drive;

1b Top view of a tractor and an embodiment of the invention plate mower with additional cutting modules

2 Top view of a dish according to the invention with knives and

3 a front view of a dish washer knives according to the invention and with the knives having bends as wings;

In the 1 is the tug ( 2 ) shown schematically, the modular plate mower ( 1 ) pulls over a detachable connection.

The drive of the modular plate mower is carried out in the illustrated embodiment by means of a PTO shaft drive via the tractor, via a propeller shaft to an angle gear ( 3 ) leads. On the vertical down attaching shaft a double V-belt pulley is arranged, via which the individual panes, are driven by means of V-belt pulleys. These V-belt pulleys are bolted to vertical shafts in stable, dust-free and dirt-free encapsulated bearings on the frame mower frame. On the underneath of the shafts are the discs ( 9 ) fastened in this version with rivets. It is also possible to use screws or other detachable systems which replace the shim ( 9 ) z. B. with regular material inspection or destruction of the disc ( 9 ) guarantee. As a result, the light, quick and easy replacement is advantageously possible in case of need. The central unit ( 6a ) contains four support wheels on both sides ( 7 ) and the jib device ( 5 ), which can be operated manually in this embodiment. Other hydraulically or pneumatically assisted systems are also possible here but not shown. The left and right arms ( 6b and 6c ) are around the central unit ( 6a ) arranged. The number of support wheels ( 7 ) may be at least six in addition to the design with four support wheels, the additional wheels are either disposed between the existing wheels and / or additionally arranged centrally in the central unit.

The 1a shows schematically the modular plate mower ( 1 ) with V-belt drives and V-belt pulleys ( 4 ) and the V-belt tensioner ( 16 ), which is only shown separately here. The middle section ( 6a ) arranged left arm ( 6b ) and the right arm ( 6c ) have on their end sides pipe runners ( 8th ) as outer supports, which are adjustable and can be adjusted according to the soil and working conditions. In one embodiment, not shown here, instead of the runners and wheels or training wheels ( 7 ) are used, which are optionally also designed as a steerable execution of the central unit and / or the arms.

The 1b shows schematically the modular plate mower ( 1 ) in which the left and right side modules ( 14 ) and ( 15 ) are provided with the adjustable outer pipe runners. In another embodiment, not shown here, wheels may be arranged in place of the pipe runners in this area. These can be configured as pure training wheels fixed with a wide profile so as not to damage the lawn. In a further variant, the wheels are arranged laterally pivotable in order to ensure a small turning circle of the device according to the invention Afford.

The 2 shows a plan view of the dish washer ( 9 ). On the circumference are opposite the knives ( 10 ) arranged. In the present embodiment, these are arranged at a distance of 90 ° on the circumference, so that 4 knives ( 10 ) available. Two opposing knives ( 10 ) also have wings ( 11 ) on. The wings promote the negative pressure below the plate disc ( 9 ), so that the cutting process becomes more effective and the cut crop is once again pulled into the disc mower or to the dish disc. As a result, according to the invention, the crop is cut so small that it does not have to be subsequently added to a collecting container. Furthermore, this fine crop also serves as fertilizer, so that a further step is eliminated.

The attachment of the knives ( 10 ) and ( 11 ) takes place on the dish washer in the illustrated embodiment via fastening screws. According to the invention, a quick and easy replacement of possibly damaged or blunt knives ( 11 ).

The 3 shows the side view of a dish washer ( 9 ) with two opposite knives ( 11 ) with the employed wings.

1

plate mower

2

tractor

3

angle gear

4

V-belt drive for dishwashers

5

A bracket assembly

6a

CPU

6b

left boom

6c

right boom

7

stabilizer

8th

pipe skids

9

dish washer

10

knife

11

knife with wings

12

attachment

13

central axis

14

boom

15

boom

16

V-belt tensioner

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 6921324 U1 [0003]
• - EP 57936 B1 [0004]
• - DE 1632823 [0005]

Claims (22)

A plate mower, characterized in that it has a modular construction of a central unit and at least one module, wherein the central unit and at least one module are configured with disc plates as a knife. Plate mower according to claim 1, characterized that in addition to the central unit at least one module over the central unit is driven. Plate mower according to claim 1, characterized that in addition to the central unit at least two modules over the central unit are driven. Plate mower according to one of the preceding claims, characterized in that the drive of the central unit and the module is done via an angle drive. Plate mower according to one of the preceding claims, characterized in that the central unit and the modules separately via a motor with an oil pump, pneumatic or electric units be driven on the plate mower. Plate mower according to one of the preceding claims, characterized in that the central unit has a width of at least 0.60 meters and the modules in the same size are arranged on the central unit. Tellerscheibe characterized in that the dish disc is designed with at least two knives. Dish washer according to claim 7, characterized that the dish disc as a geometric shape at least square, hexagonal, octagonal, ten or higher or even can be designed around. Dish washer according to claim 7, characterized that the dish discs with at least two knives and the knives are designed with wings, the angle of the wings has a range of 15 ° to 85 ° and is preferred an angle in the range of 25 ° to 65 °. Dish washer according to claim 7, characterized that the dish discs with at least two knives and the knives are designed with wings. Dish washer according to one of the preceding claims characterized in that the panes preferably with four Knives are designed, with two knives with additional Wings are designed. Dish washer according to one of the preceding claims characterized in that the dish disc with the knives overlapping are arranged below the mowing device. Dish washer according to claim 7, characterized that the dish disc and / or the knife made of a material the group of metals, plastics, glass fiber reinforced Plastics, composites or the like can be produced. Dish washer according to one of the preceding claims 7 to 13, characterized in that the dish disc and / or provide the knives with a hardening coating is the one on the material from the group of metals, plastics, glass fiber reinforced plastics, composites or the like be prepared is applied. Dish washer according to one of the preceding claims 7 to 14, characterized in that the dish disc and / or the knives are made of stainless steel. Dish washer according to one of the preceding claims 7 to 15, characterized in that the knife with the dish washer are not detachably or detachably connected. Dish washer according to one of the preceding claims 7 to 15, characterized in that the knife with the dish washer are preferably releasably connected. Self-propelled or remote-controlled device characterized in that the device consists of a chassis At least partially pivotally mounted wheels, with a plate mower that has a modular design, which consists of a central unit and at least one module, a driving motor for driving and driving the plate mowers and other units for lifting and lowering the plate mower modules and a control device for steering the pivotally mounted Wheels, the control being autonomous or by means of a remote control takes place. Self-propelled or remote-controlled device according to claim 18, characterized in that the control unit if necessary, the plate mowing unit and the modules as well the device itself in height during the Mowing procedure. Self-propelled or remote-controlled device according to claim 18 or 19, characterized in that the control unit if necessary, the plate mowing unit and the modules as well the device separately in height during the Mowing procedure. Self-propelled or remote-controlled device according to claim 18 or 20, characterized in that the control unit if necessary coupled with a GPS and the mowing Area can measure accurately and processed. Self-propelled or remote-controlled device according to one of claims 18 to 21, characterized that logs the mowing work by visual recording becomes.