DE102006042552A1 - Rotary tedder has at least six rakes mounted on two arms which are angled forward in working position and can be pivoted back about vertical pivots until they are parallel and can then be raised about horizontal pivots to vertical position - Google Patents

Abstract

The rotary tedder has at least six rakes mounted on two arms which are angled forward in the working position. They can be pivoted back about vertical pivots (15, 15') until they are parallel and can then be raised about horizontal pivots (14, 14') to a vertical position.

Description

The The invention relates to a rotary windrower according to the preamble of claim 1.

State of technology

In the DE 103 27 915 a rotary windrower is described with at least three rows of squadrons forming forming, which are aligned in the working and operating position in the direction of travel substantially V-shaped, the windrowers in machine direction and against the machine travel direction translationally movable on a machine frame can be supported. The swath rotors are supported in their working and operating position obliquely to a central drawbar aligned arms, which are each scissors-like zoom in a transport position on the central drawbar. The disadvantage here is that the driver to observe the combination of his gaze in the direction of travel not only forward, but also often has to turn backwards.

This deficiency tries the DE 103 27 916 to fix it by proposing a self-propelled rotary windrower also with three staggered rows in V-shaped arrangement. Here, the first season row and thus the front windrower front on variable length arms, the course of which is directed outwards and at the same time to the rear, attached to the carrier vehicle, so that the windrow are in your working position approximately at the height of the cab. The second season series is located in the interaxle space of the host vehicle and the third season series at the rear of the host vehicle. All windrowing gyros are attached to cantilevered outriggers, which are folded up during transport for road transport. A disadvantage of this concept is the great technical effort and the associated high investment costs, which would cause a self-propelled machine, in this case a rotary windrower for the operator.

Furthermore are already rotary tedder with four rotary rakes commercially available, the in working position substantially V-shaped open to the front are. Here, for example, the rotary rakes are variable in length Arranged outriggers. Corresponding quadruple rotary windrower are however, generally as an appendage Work machines for trained a tractor.

Furthermore, rotary windrower or haymaking machines are already in accordance with the DE 200 04 538 U1 known, these comprise three rotary rake, which are arranged on a support arm which can be pivoted about a pivot axis. This is a can be attached to a tractor rotary windrower, wherein the support arm is aligned with the rotary rake in the transport position along the direction of travel and wherein the axis of rotation, viewed in the direction of travel, is present in front of the support arm. In the working position of the support arm is pivoted about the pivot axis, that this is aligned at an acute angle to the transport position and directed backwards. As a result, the rotary rake are each arranged laterally offset one behind the other, to zusammenzuchen according to crop. As a result, this is a towed rotary windrower, which deposits the swath sideways.

By according to opposite driving over of the field, the crop of a total of six rotary rakes to a single swath.

adversely However, here is that for a big Working width, whereby at least six rotary rake widths to one Schwad be merged, the corresponding field is run over twice. On the one hand, this is time consuming and also uneconomical. An extension of the support arm for recording of four or more rotary rakes is in the transport position or in traffic not to handle.

Out The stated prior art is clear that currently no Concept for Rotary swather is present, both for smaller and medium rotary swathers economically with two to four rotary rakes also on one large-scale rake with at least six rotary rakes and both in the working position as well in the transport position is easy to handle.

task

The The object of the invention is therefore to provide a well-manageable rotary swather, especially medium swathers with large working width, both in the working as well as in the transport position with significantly improved to propose economic characteristics.

Solution of task

Is solved the object of the invention with the features of the independent claim 1. Further advantageous embodiments of the invention are the dependent claims, the Description and to see the figure representations.

Accordingly, a rotary rake according to the invention is characterized in that viewed in the working position in the direction of travel of the rear end portion of the adjustable support frame in front of the front end portion of the adjustable Support frame is arranged. In particular, in the transport position of the adjustable support frame is considered in the direction of travel behind the axis of rotation of the support frame and that in the working position of the adjustable support frame viewed in the direction of travel is arranged in front of the axis of rotation of the support frame. This means that the support frame is at least partially arranged in the transport position to the rear or behind and in working position at least partially forward or in front of the axis of rotation. As a result, the support frame is generally much further adjustable or pivotable than was previously the case.

Next the pivoting of the support frame to a real or virtual Rotary axis are also other adjustment according to the invention conceivable as e.g. adjust longitudinally an advantageous guideway or similar.

The Invention leads to a particularly simple design principle in which the rotary swather very good both in the working and in the transport position handle and at the same time economically producible and operable is, especially in a rotary windrower with a large working width.

Especially economical here is especially that, for example, the support frame or -arm two or more rotary rake can be arranged so that thereby already a simple variation of the working width can only take place in that the support frame in an advantageous Way different lengths can be formed. Appropriate other components, for example means for fixing the rotary rakes on the support frame and / or the adjustment mechanism and / or control of Support frame and / or the rotary rake can be maintained. Corresponding Simplified and at the same time economically improved is the production corresponding different rotary windrower.

Furthermore can also by the use of multiple support frame according to the invention a additional flexibility in terms of the working width can be achieved. Especially when using several Support frame according to the invention can corresponding components double or triple etc. used What is a particularly economical production and / or Control of this allows.

Preferably is in the transport position, the longitudinal axis of the support frame in Essentially aligned in the direction of travel. This ensures that The rotary windrower is particularly good in traffic or in the transport position is to handle. With such a largely parallel to Roadway or direction aligned arrangement of the support frame the rotary windrower in transport position has a particularly low Width up. Optionally, the rotary rakes are horizontal, i. their Rotary axis substantially vertically aligned so that, for example when using a single support frame, the width of the rotary rake essentially defined by the width of the rotary rake. This is currently common Rotary rake quite tolerable.

In a particular embodiment of the invention, the swivel angle essentially larger than 90 ° and less than 170 °. This is particularly advantageous in the case where the longitudinal axis the support frame in the transport position about or substantially aligned in the direction of travel. Accordingly, this is an obtuse Swivel angle realized. This is in stark contrast to the very sharp swing angles according to the state of the technique.

Preferably is the pivot angle of the support frame in the working position controllable variable, so that, for example, realizes an adaptation when cornering becomes. This will make the coverage area the accordingly successively arranged rotary rake both straightforward as well as cornering as optimally as possible. Accordingly, the crop is optimally computable in the field.

advantageously, is the swivel angle, especially in the transport position essentially aligned in the direction of travel longitudinal axis of the supporting frame, between 125 ° and 150 °. It has shown that such a tilt angle of particular advantage is.

In An advantageous variant of the invention is in the working position the longitudinal axis the support frame in relation to the direction of travel and a working angle essentially between 10 ° and 80 °, preferably between 30 ° and 60 °, aligned. Also according to this Variant is the collapse of crop on the field especially to realize advantageous.

In principle, the pivot angle can also be formed smaller than 90 °, wherein according to the invention, the longitudinal axis of the support frame in the transport position is to be aligned obliquely or at an acute angle. This can be advantageous, for example, when using a single support frame which has, for example, a pivot axis which is not centrally offset, ie offset laterally relative to the central longitudinal axis of a drive vehicle. In such a variant, it may be advantageous to arrange the support frame at an acute angle in the transport position relative to the direction of travel, wherein in Trans Portstellung the axis of rotation, for example, substantially at the outermost side and the free end of the support frame forms the opposite, extreme end of the rotary rake. Accordingly, the support frame essentially defines the width of the rotary rake in the transport position.

at the use of a single support frame according to the invention, the rotary windrower generally only lay the swath sideways. Preferably are at least two pivotable about substantially vertical axes of rotation support frame intended. For example, with two pivotal support frame according to the invention can Also realized a so-called center rake in an advantageous manner are, i. that the rotary windrower places the windrow in the middle. For example, the rotary windrower is substantially symmetrical formed to the central axis, so that, for example, the used Components can be used twice. This will be the Production as well as the operation or control of the rotary rake improved.

Furthermore let yourself realize an arrangement of the rotary rake in the direction of travel of the open V-position, so that the handling of the rotary rake, especially in labor is advantageous.

Basically according to the inventive arrangement of the support frame, i. in transport position behind and in working position in front of the pivot axis, that achieves that the rotary windrower both when using a single as well as when using two correspondingly pivotable support frame both in transport position as well as working position are particularly advantageous to handle. Especially by the Vorschwenken in the working position of the rotary rakes is enabled that the operator or the driver of the rotary rake and / or the tractor comparatively well the foremost or extreme Can view rotary rakes. The foremost or outermost rotary rake is in Generally the ultimate rotary rake, which has an edge of Working width defined. When V-shaped arranged rotary rakes are thus the two outer rotary rakes crucial. It is particularly advantageous here if this particularly far forward according to the invention adjustable are.

advantageously, are in the transport position, the two longitudinal axes of the support frame substantially arranged parallel to each other. This is just in the Use of two support frames ensures that these are in the transport position are particularly compact can be arranged. The transport width is correspondingly low the rotary rake, which is especially true in the execution as a large swather is of particular advantage.

As a general rule can the rotary windrower according to the invention either as a self-propelled driver or as an attached or aufzusattelnder Rotary rakes are formed. When aufzuschatteln rotary windrower can the rotary swather from the towing vehicle, in particular tractor, completely in the transport position be lifted off the ground. Here are separate wheels for the support frame or the rotary windrower is not absolutely necessary. It can only which support the rotary rakes Wheels available be. A corresponding rotary windrower is in an advantageous manner raised by the currently standardized three-point clutches.

Preferably the support frame (s) are oriented at a direction transverse to the direction of travel Transverse frame arranged. In this case, the axis of rotation is advantageously arranged between the transverse frame and the support frame or the corresponding Components are over the corresponding axis of rotation of the support frame together in an advantageous manner Way connected.

With Help of such a transverse frame, it is in an advantageous manner possible, the pivotability of the invention of the support frame from the transport position to the working position to realize. Furthermore can the support frame according to the invention also while changeable to the working position be pivoted on the transverse frame.

Preferably an adjusting unit is provided, on the one hand on the transverse frame and on the other hand is arranged on the support frame. For example a cylinder piston unit, in particular hydraulic cylinder piston unit, as adjusting unit according to the invention intended. Hydraulic components are already in agriculture widely used, so that appropriate towing vehicles or components with appropriate hydraulic pressure generating units, hydraulic lines, hydraulic connections, etc. already commercially available are and therefore economically favorable to disposal stand.

Farther It is conceivable that, for example, when using two support frames according to the invention the adjustment not necessarily on the cross frame, but on the one hand arranged or fixed on the first and on the other hand on the second support frame is and thus the adjustment of the two support frame feasible is. Preferably, however, are in the use of two support frames provided two separate adjustment units, in particular each are to be arranged on the transverse frame. As a result, a stable or defined positioning and / or changeability of the respective Support frame realized.

In an advantageous variant of the invention is at the transverse frame at least a coupling device for coupling the rotary rake with the tractor arranged. As a result, an appendable or aufgeschattelnde variant of the invention feasible. Here is both a coupling device conceivable that a three-point clutch todays tractors, in particular for tractors or the like, can be coupled and / or a coupling device, as Drawbar or the like to corresponding drawbar-receiving couplings, as Maulkupplungen etc., of current tractors engageable is.

Preferably is at least one pivot axis having a pivot unit provided between the transverse frame and the coupling device. Such a pivoting unit can advantageously pivot of the rotary rake in relation to the tractor especially during the Transport position of the / of the support frame can be used. hereby becomes maneuverability a corresponding rotary rake according to the invention, especially in the form as large-scale rake, with at least three arranged on a support frame rotary rake and / or two support frames each having at least three rotary rakes, much easier.

at an embodiment of the coupling device according to the invention as a drawbar or the like is not such a separate pivot unit mandatory. Rather, in the sense of the invention, the coupling device formed as the pivoting unit. Optionally, this can also be on be dispensed with the transverse frame or a longitudinal frame or possibly no corresponding additional frame element can be used.

advantageously, is at least one locking unit for locking the pivot unit provided, so that at least in the working position, the transverse alignment the transverse frame in relation to the tractor and / or the direction of travel is locked. With the help of such a locking unit is ensured that the / the support frame and thus arranged on this rotary rake a defined position to the tractor or to the chassis of as possibly self-propelled rotary swather trained working aggregate is arranged. For example, the locking unit comprises at least a piston-cylinder unit, in particular a hydraulic piston-cylinder unit, and / or a preferably material-locking latching or plug-in unit. The corresponding locking or releasing the pivoting unit according to the invention is preferably controlled automatically by the operator or possibly also realized manually.

As a general rule it is advantageous, the rotary windrower with respect to the corresponding steering wheels at least while fix the work phase or in working position, which improves the handling of the rotary rake according to the invention becomes. This includes within the meaning of the invention, a defined change of the supporting frame with respect to the swivel angle and / or in relation to the tractor or the steering wheels. Here will be on the already mentioned above adaptability the swing angle or the orientation of the support frame above all in cornering to optimize the coverage areas of each Rotary rake directed.

Basically advantageously a largely automatic adjustment the pivot angle of the support frame in dependence on the steering angle of the steering wheels or the tractor are provided. This is preferably done by means of an electronic control unit implemented what a largely ensures optimal collapse of the crop even when cornering.

Preferably the locking unit is released in the transport position, so that the maneuverability of the rotary rake during the transport or transport position is optimally possible.

In a particular embodiment of the invention is at least one the windrower on a boom connected to the support frame. Preferably, at least two, in particular three rotary rakes each with separate arms with the corresponding support frame connected. With the help of one or the boom can / the rotary rakes flexible in the transport position and / or in the working position be arranged in relation to the support frame or the towing vehicle. For example, a boom is at least partially in the direction of travel and / or a second boom aligned counter to the direction of travel. This allows the V-shaped Arrangement, for example, with corresponding rotary rakes, by Such alignment of the boom in different directions to be generated. It is advantageous that the / the support frame according to the invention need to realize a comparatively small tilt angle.

Furthermore can be aligned by a forward or in the direction of travel Boom at least the foremost rotary rake a little further be positioned at the front or in the direction of travel, so that this preferably is arranged far forward. This is especially the foremost Gyroscope or the foremost rotary rakes especially good from the driver or visible by the operator in the working position.

Preferably, all booms are at least partially aligned counter to the direction of travel and / or oriented outward. In this case, in particular, an advantageous follow-up behavior of the rotary rake can be realized or a training of the rotary rakes pulling from the support frame is realized.

advantageously, the boom (s) is rotatable about at least one axis on the support frame arranged. Preferably, the boom (s) are each at least about two axes rotatably mounted on the support frame. For example the two axes are aligned substantially orthogonal to each other. In particular, an axis is substantially vertical and / or the other axis aligned substantially horizontally. With help Such axes of the boom, these are both horizontal and / or vertical pivotally, which on the one hand an advantageous pivoting of the boom and thus the rotary rake realized, for example, by the Working position in a hochverschwenkte or elevated transport position to be displaced.

on the other hand can be characterized by a substantially vertically aligned axis of the Jib to a pivoting of the boom and thus adjustment the corresponding rotary rake realized in approximately horizontal plane be, whereby advantageously an adjustment of the working position of the corresponding rotary counter can be realized in an advantageous manner is. For example, this adjustability of the boom for Adaptation of the working areas of the rotary rakes in straight ahead driving and correspondingly adjusted position in cornering, in particular in dependence of the radius of curvature.

Furthermore can in particular by the pivoting of the boom of the rearmost Rotary gear, especially in a V-shaped rotary windrower to a change the width of the central swath or the swath are used.

Farther can also by the pivotability of the boom of the foremost Rotary rake the working width of the rotary rake according to the invention changed in an advantageous manner become. This can also be used to bypass obstacles or the like can be used.

Basically it is advantageous to a rotary windrower according to the invention, in particular as a so-called large swather formed by means of an obstacle detection system and / or inventory edge detection system form, as some working widths of about 22 m realized can be. For example, the rotary windrower according to the invention may also be an obstacle detection system include the already stored obstacles; like trees, streams, stones, previously located foreign objects, as broken prongs and / or other parts of agricultural Machines from previous operations, etc. includes. Herewith Is it possible, that when approaching to corresponding, in particular previously stored obstacles an automatic pivoting of the support frame and / or the boom and / or the steering wheels is realized. This increases the operational safety of corresponding rotary windrower according to the invention, especially with big swimmers with working widths of about 20 m or more of vital importance can be.

Preferably the boom (s) are each designed as variable-length cantilevers. This makes it possible, on the one hand, that also by the length variability the boom an adaptation to the working width or to evade from obstacles etc. can be used. On the other hand, through the length variability also an advantageous adaptation of the boom to the working position or the transport position of the rotary rake done.

Preferably the boom is in working position substantially completely removed, i.e. he has his maximum length. In transport position this is, especially in combination with the variants of the invention, in which the rotary rake in the transport position are folded up, largely retracted, i. these are in the Essentially minimal length on, so the transport height the rotary rake according to the invention can be reduced in transport position. This will increase the transportability the rotary rake according to the invention on improved.

Preferably is a working position of an operator in the working position viewed in the direction of travel substantially at the height of the axis arranged at least one of the rotary rake. This allows the Operator or the driver the corresponding rotary rakes especially Good to see, as this, so to speak, placed next to the rotary rake is. As a result, the driver or the operator does not have turn backwards to the outermost one or most relevant rotary rake, for example in the case of obstacles, existing edges etc. is of crucial importance is.

In a preferred variant of the invention, in the working position, the working position of the operator in the direction of travel is arranged behind the axis of at least one of the rotary rakes. As a result, the operator or the driver can see the outermost rotary rake or the outermost rotary rake particularly well, since it may already appear in the field of vision of the operator. This is also a rotary windrower with FITS ders great working width of about 20 m and more by a driver or an operator handle very well.

Possibly is the operator even behind the frontmost rotary rake, related to the direction of travel, arranged in the working position and / or already at height of the second rotary rake. Accordingly, the visual surveillance continues or insight regarding the rotary rakes improved.

In a special development are at least six, each at essentially vertical axes driven in rotation, on the ground through wheels supportable Rotary rake provided for collapse of crop. Preferably these arranged in working position substantially V-shaped. It has shown that the inventive concept especially for corresponding large swathers is of particular advantage. Such large swather with a total of six or more rotary rakes can according to the invention produced in an economic way and both in the field and in the working phase as well as on the road or in transport position be handled very well.

Furthermore can the concept of the invention not only for such large swaths, for .... As well medium to smaller rotary windrower are used, thereby a standardization of corresponding components can be realized. This allows both the manufacture, storage, maintenance and repair significantly simplified and economically cheaper be implemented.

As a general rule Can a rotary windrower with at least two support frames as a side rake be formed. This can be in the working position of the Support frame according to the invention aligned to the front and the other support frame aligned to the rear become. For example, this ensures that at an above called six-fold rake by two opposing ones A damage total of 12 rotary rakes matched becomes.

In an advantageous embodiment the support frame has at least one wheel for moving the rotary rake, at least in the transport position. Such an impeller can not only in an advantageous manner in the transport position, but also in the working position for supporting or method of the rotary rake or the support frame used become. With the help of such a trained on the ground trained support can the support frame comparatively easily or statically realized low which in turn means economically viable production.

Furthermore It is conceivable that in a rotary windrower according to the preamble of claim 1 and to the solution the above task a wheel of the support frame or when using of at least two support frames, each with a corresponding one Impeller it may be beneficial to the / the wheels of the support frame with a Drive, in particular a direct drive train. Herewith can leverage of the supporting frame with respect to the axis of rotation and / or with respect the pivoting and / or locking units reduced or improved become. For example, directly driven electric torque motors or directly driven hydraulic motors conceivable. Also, this can the pivoting of the support frame is supported or generated.

Furthermore is also conceivable, the / the wheels the support frame steerable or controllable form, so that the Cornering both in working position and in transport position can be improved.

According to the invention can realize a central swather of the type described above which, e.g. as aufgesattelter rake in conjunction with a carrier vehicle in the working position and in its operating behavior essentially the same features as a self-propelled rotary rake, and wherein this in the transport position, the same properties like an attached rotary rake having.

In particularly advantageous embodiment the rotary windrower can be combined with a tractor or the like so that the tractor as a universal machine of agricultural technology and the rotary windrower in the coupled state as a unit substantially the same features and advantages of a self-propelled rotary rake exhibit.

Of the Rotary rake according to the invention is preferably attached to the rear of the tractor and / or saddled and it can be advantageous, e.g. in the lower coupling points of the lower link the three-point hydraulic coupling to be recorded. It is the Schwadgummel receiving machine frame essentially in two parts as a support frame or swing-wing frame formed, wherein the support frame or pivoting wings about vertical pivot axes pivoted from the transport position to the working position and vice versa become. Here are the pivot axes according to the invention in the working position in relation to the direction of travel behind and in relation to the transport position the swing wing receiving windrows.

Advantageously, each pivoting wing is supported both in the working position and in the Transport position on each at least one support wheel from the ground.

In the working position, the swing-wing frame in your position relative to the carrier vehicle in locked in an advantageous manner, where against them in the transport position can be freely moved about the pivot axes and whereby the tracking behavior of saddled rotary rake in cornering in relation to the directionality towards the carrier vehicle Cheap can be designed.

Preferably are the swing-wing frames about vertical swivel axes, in pivot bearings at the front end of the drawbar-forming longitudinal member of Chassis are articulated, horizontally swiveled.

The Linkage of the windrower to this swing-wing frame is preferably carried out with cantilevers whose longitudinal extension extends in the working position substantially opposite to the direction of travel. For example, the arms are in hinged joints with the swing-wing frame connected so that these are relative to these hinge joint axes to the swing-wing frame can be pivoted.

When Another inventive advantage may be the working width e.g. by change the swing angle of the swing wing frame with respect to the vertical longitudinal center plane varied or changed.

These Embodiment includes other benefits, such as the possibility after-taxing the overlap the windrower in cornering, the variation of the working width of the rotary rake and / or the swath width of the composite swath or, for example, the possibility of evasive maneuvers with obstacles at the edges the ruler to be processed, without the trace of the Drive vehicle in your direction of travel would have to be changed.

In a further advantageous embodiment of the invention are the Boom length variable, for example, telescopic designed. This allows advantageously a transverse displacement of the windrower relative to the swing-wing frames, which e.g. a lower transport height by lowering the windrower allows.

The inventive type of For example, the design of the rotary rake makes it possible for the swing-wing frames in their operating or working position in the direction of travel V-shaped open arrangement to each other, whereas these to the movement of the windrow be pivoted back into the transport position, so that the swing-wing frame in the transport position preferably next to each other about are aligned parallel to each other.

Before the swing-wing frame in their final Transport position are spent, the Schwadkreisel are e.g. pivoted (hinge) axes of (hinge) joints of the boom so that the jibs are aligned approximately perpendicular to the pivoting sash frames, then the windrower then into an approximately upright level to be folded.

After that become the swing-wing frames in an advantageous manner in their final transport position pivoted. This type of flyover of the windrow in the transport position also has the advantage that the Tine tips of the windrow are so to each other that this assign each other and thus inside the collapsed Rotary rake are housed, making them a lesser risk potential for participation at public road traffic represent and preferably arranged at least partially overlapping are.

The Support wheels of the Swing wing frame are advantageous as follower wheels executed so that this turns automatically on the Abrollverhältnisse in cornering can set in curve radii.

Further details of the invention are the following figure representations and their Descriptions can be found.

embodiment

It demonstrate:

1 shows an embodiment of the invention schematically illustrated by the example of a mounted rotary rake in a plan view,

2 shows an embodiment of the invention shown schematically using the example of a mounted rotary rake in an altered configuration relative to the 1 with about the same working width,

3 shows an embodiment of the invention shown schematically using the example of a mounted rotary rake in an altered configuration relative to the 1 and 2 with approximately the same working width, for example when cornering,

4 shows the rotary swather according to 1 schematically in an intermediate position for transfer to the transport position,

5 shows the rotary swather according to 1 schematically in plan view in a transport position, wherein the starting position according to 1 is shown dotted

6 shows the rotary swather according to 1 schematically in plan view in the folded transport position in a curve,

7 shows schematically a rotary windrower with a total of four rotary rakes, which are arranged on two support frames,

8th schematically shows a third rotary windrower with three rotary rake, which are arranged on a single support frame and

9 schematically shows a fourth rotary windrower according to the invention with six V-shaped rotary rake, which are arranged on a total of two support frame, wherein an adjustment of the support frame are fixed to the front of a tractor in the working position.

The rotary windrower 1 according to 1 is as a central swather with six windrows 2 . 2 ' . 3 . 3 ' . 4 . 4 ' , which are arranged in three staggered rows V-shaped to each other, exemplified. The working or driving direction F is indicated by a direction arrow. The rotary windrower 1 is by means of a coupling device 6 to a carrier vehicle 7 , For example, a tractor, grown, the coupling connection and the power supply such as PTO, hydraulics, and also electrical and possibly also the bus connection (eg ISO-BUS) can include.

To the coupling device 6 connected is a middle frame 8th which extends substantially transversely to the direction of travel F, and on the outside in hinged joints 14 . 14 ' around their tall axes 15 . 15 ' pivotable support frame or swing-wing frame 5 . 5 ' are connected. The horizontal pivot axes 16 . 16 ' the folding joints 14 . 14 ' , which are also designed as universal joints, serve to make the swing-wing frame 5 . 5 ' independent of each other and independent of the carrier vehicle 7 can adapt to the ground relief during override. Each swing-wing frame 5 . 5 ' has a support and trailing wheel 9 . 9 ' on which these are supported against the ground.

Preferably, the coupling device 6 on the lower links of the tractor 7 connected. The drive of the rotary rake can also preferably be done by the PTO of the tractor or alternatively by other energy converter of a host vehicle 1 , such as an on-board hydraulics. Rake tines of the circulating windrow 2 . 2 ' . 3 . 3 ' . 4 . 4 ' are controlled in a known manner by a curved path, wherein the windrower from a gyroscope 18 , which are known in various embodiments to those skilled, are supported against the ground.

Each of the windrow 2 . 2 ' . 3 . 3 ' . 4 . 4 ' is out according to the variant 1 by means of a jib 10 and a folding joint 11 , which as a universal joint with a vertical hinge axis 12 and a horizontal hinge axis 13 is formed with one of the two swing-wing frame 5 . 5 ' connected. Advantageously, the windrow gyros 2 . 2 ' . 3 . 3 ' . 4 . 4 ' in a conventional manner gimbal movable on the arms 10 connected so that the windrow 2 . 2 ' . 3 . 3 ' . 4 . 4 ' thereby independently and independently of the height movements of the machine frame of the rotary rake 1 can currently adapt to the ground relief when driving over.

The respective connection point of the boom 10 the windrower 2 . 2 ' . 3 . 3 ' . 4 . 4 ' at the respective swing wing frame 5 . 5 ' is designed as a folding or universal joint, for example 11 , This embodiment allows the cantilevers 10 or the windrower 2 . 2 ' . 3 . 3 ' . 4 . 4 ' in that these on the one hand around the vertical pivot axis of the universal joint 11 in the horizontal working plane and on the other hand around the horizontal pivot axis 13 of the universal joint 11 can be folded up into a transport position. This is advantageous on the one hand for reasons of transport, so that the windrower 2 . 2 ' . 3 . 3 ' . 4 . 4 ' in the folded transport position can take an orientation parallel to the direction of travel F and on the other hand in the working position also on the direction of travel F can be aligned accordingly, which is characterized by the angle of attack β, β '.

By pivoting the swing-wing frame 5 . 5 ' around the vertical pivot axes 15 . 15 ' of the vertical joint or universal joint 14 . 14 ' These can optionally from the transport position according to 6 according to the working position 1 be pivoted, the working position of the swing-wing frame 5 . 5 ' is defined by an opening angle α. This can be determined by an advantageous locking of the part-turn actuators 17 . 17 ' , For example, designed as a double-acting hydraulic cylinder. The lock can be formed, for example, by unlockable twin check valves. This can at the same time the working width A of the rotary rake 1 can be varied by the pivoting angle α and possibly β, β 'are varied. By changing the angle of attack β, β ', the boom 10 corrected or maintained in their orientation along the direction of travel be, which at the same time may include a variation of the gyroscopes X ₁ , X ' ₁ , X ₂ , X' ₂ with each other. For example, the pivot arms 10 a swing-wing frame 5 . 5 ' be connected by a push rod with each other articulated in a conventional manner, which is actuated by an actuator, not shown, for example, double-acting hydraulic cylinder, so that all pivot arms 10 be operated simultaneously in an advantageous manner.

On the other hand, it is equally possible for each of the windrow gyros 2 . 3 . 4 respectively. 2 ' . 3 ' . 4 ' a separate pivot drive, for example, double-acting hydraulic cylinder, assign such that by their operation, the angle of attack β1, β1 ', β2, β2', β3, β3 'can be adjusted independently, as this in 2 is shown. 2 shows the rotary swather 1 according to 1 , but with a smaller opening angle α, by the operation of the part-turn actuators 17 . 17 ' across from 1 was changed. At the same time, the angles of attack β ₁ , β ₂ , β ₃ , β ₁ ', β ₂ ', β ₃ 'were changed. Both changes, the opening angle α and the change in the angle of attack δ, δ 'of the swing-wing frame 5 . 5 ' as an inclusion angle between the vertical transverse plane 19 and the respective swing-wing frame 5 . 5 ' , and the angle of attack β ₁ , β ₂ , β ₃ , β ₁ ', β ₂ ', β ₃ 'allow the same working width A, as in 1 shown. This allows the visibility to the windrower of the rotary rake 1 individually to the carrier vehicle 1 and / or individually tailored to the needs of the driver without necessarily having to change the working width A.

On the other hand, taken alone, the variation of the pivot angle δ, δ 'or β, β' for working width adjustment and also for one-sided working width adjustment A by adjusting only one half of the rotary rake 1 be used. This makes it possible, inter alia, each of the two swing-wing frame 5 or 5 ' to pivot on one side and independently of the other by changing the angle of attack δ or δ ', which is also an unbalanced position of the two swing-wing frame 5 . 5 ' relative to the vertical longitudinal center plane 20 allows, like this one in 3 is shown.

The latter may be advantageous, for example, when processing a marginal strip of a field, or when avoiding obstacles such as trees or boundary posts at the edges of the working width A of the rotary rake 1 but also when cornering, to prevent crops from lying between the windrow gyros.

To transfer the rotary rake 1 according to its transport position 6 For example, first the arms 10 around its vertical pivot axis 12 of the folding joint 11 pivoted into the β = 90 ° - or β '= 90 ° position, and then the swing-wing frame 5 . 5 ' opposite to the direction of travel F about the vertical pivot axis 15 . 15 ' of the folding joint 14 . 14 ' pivoted to the rear in the direction of the pivot arrow with the pivoting direction S, S '. A snapshot of this intermediate position shows 4 , This should be the boom 10 with its windrower 2 . 2 ' . 3 . 3 ' . 4 . 4 ' in time before reaching its final transport position in its vertical position about the horizontal pivot axis 13 of the folding joint 11 be swung up so that they have the necessary freedom to reach the final transport position according to 6 release in an advantageous manner. How out 5 shows, sweep the swing-wing frame 5 . 5 ' for transfer to its transport position a pivot angle γ, γ ', which is greater than 90 ° and which is advantageously within the range of about 105 ° to 160 °, which advantageously a variable opening angle α in the range of about 40 ° to 150 °. Thus, the swing wing frame lie 5 . 5 ' or the windrower 2 . 2 ' . 3 . 3 ' . 4 . 4 ' according to the invention in the working position in the direction of travel F in front of the vertical transverse plane, which by definition by the two joint axes or pivot axes 12 is clamped or in front of the two joint axes 12 and in the transport position counter to the direction of travel F behind the two joint axes 12 , In the transport position, the swing-wing frames take an approximately parallel course to each other in an advantageous manner. Here are the swing-wing frame 5 . 5 ' in terms of their orientation and position substantially to each other.

Especially by means of 5 It is clear that according to the invention in the working position in the direction of travel F considered in the transport position rear end portion of the adjustable or pivotable support frame 5 in front of the transport position in the front end portion of the adjustable or pivotable support frame 5 is arranged. According to the variants of the invention shown in all figures is in the transport position of the adjustable support frame 5 in direction of travel F considered behind the axis of rotation 15 of the supporting frame 5 and in the working position of the adjustable support frame 5 in direction of travel F viewed in front of the axis of rotation 15 of the supporting frame 5 arranged.

In the working position, the rotary swather behaves 1 like a cultivated device, adding the degree of freedom of rotation about the vertical axis 22 of the vertical joint 21 is canceled by a non-descriptive locking device. In the transport position, however, we lifted this lock so that the rotary rake, supported on its support and trailing wheels 9 . 9 ' has the tracking properties of a single-axle trailer. For this it is expedient, the vertical axis of the support and Nach Wheels 9 . 9 ' to be locked so that they are set to straight ahead. In principle, it is also possible, the steering angle of the support and trailing wheels 9 . 9 ' depending on the radius of curvature to control how this is well known in rotary rakes.

Particularly advantageous is the placement of the support and wheels 9 . 9 ' on the swing-wing frame 5 . 5 ' from when they are mounted approximately at the height of the rear axle of the carrier vehicle, so that in the working position adjusts a favorable tracking behavior with respect to the steering and the steering forces and thus at the same time the lateral forces acting on the carrier vehicle during cornering are minimal ,

The quarter-turn actuators 17 . 17 ' assume several functions in which they are the swing-wing frame 5 . 5 ' lock in their working or transport position, the opening angle α and thus the working width A of the rotary rake 1 Adjust and the swing-wing frame 5 . 5 ' from the transport position to the working position and vice versa. The last Vertellvorgang can also be supported by a forward or reverse travel of the carrier vehicle, including, to the dead center of the swing-wing frame 5 . 5 ' to overcome. The switching of the hydraulic cylinder can also be done automatically, for example by a rotary encoder in conjunction with a microprocessor.

The entire control of the rotary rake 1 can preferably take place from a place, in particular from a tractor cab or the like, for example by a central control unit with ISO bus connection to a microprocessor.

In a further embodiment of the invention, all pivot axes 12 . 13 . 14 . 14 ' . 15 . 15 ' . 22 with angle encoders or rotation angle sensors and / or the actuators 17 . 17 ' or other actuators, eg for pivoting the boom 10 be equipped with sensors, as sensors, so that their signals are applied as input signals, for example via a data bus to the inputs of a microprocessor, so that the driver has, for example via a central control unit within his driver's cab, the operating state of the rotary rake 1 read in an advantageous manner on a display or the like visualized or thereby control all control movements and be able to control.

The carrier vehicle 7 , designed here as a tractor, can be without a longer, possibly also telescopic Zugdeichesel with a complex chassis in the concept of the rotary rake 1 incorporate, so that this concept in the working position has approximately the same driving and steering characteristics, as that of a self-propelled rotary rake and in the transport position the driver's visibility is not subject to any restrictions by the rotary windrower.

in principle it is also possible this innovative concept on a self-propelled rotary rake to transmit in the sense of a self-propelled work machine.

In 7 a second variant of the rotary rake according to the invention is shown, wherein a total of four rotary rake 2 . 2 ' . 3 . 3 ' are provided, which in V-shaped arrangement of two support frame 5 . 5 ' or swing-wing frame 5 . 5 ' are arranged. Shortened accordingly are the swing-wing frames 5 . 5 ' in comparison to the previously mentioned swing-wing frame 5 . 5 ' educated. As already in 7 Compared to the preceding figures, standardized or almost identical components can be used, which in particular advantageously influences the production of correspondingly different variants.

It can also be unilateral rotary swather 1 according to 8th be realized, wherein also comparable or identical components according to one or more of the aforementioned variants is used. According to the invention, a double rotary windrower can be realized, the only one swing-wing frame 5 and two rotary rakes 2 . 3 includes.

In addition, a fourth variant of the rotary rake 1 can be realized according to the invention, as exemplified in 9 is shown schematically. Here, the rotary swather points 1 in comparison to the aforementioned variants, a rotary actuator 17 . 17 ' the swing-wing frame 5 . 5 ' on, with the part-turn actuators 17 . 17 ' not on the middle frame 8th , but on the front side of the carrier vehicle or tractor 7 can be fixed. Here, for example, already used as standard three-point couplings for tractors 7 be resorted to the fixation of the part-turn actuators 17 . 17 ' to realize.

Such an arrangement of the rotary actuators 17 . 17 ' ensures particularly advantageous leverage ratios during the working position.

In the transport position is advantageously the rotary swather 1 according to 9 the fixation of the part-turn actuators 17 . 17 ' front on the tractor 7 solved, so that in the transport position of the rotary rake 1 according to 9 the quarter-turn actuators 17 . 17 ' preferably on the middle frame 8th fixing are bar. Here, the swing-wing frame 5 . 5 ' through the part-turn actuators 17 . 17 ' can be fixed advantageously in the transport position.

In principle, the angles of incidence β, β 'for varying the working width can also be adjusted independently of one another. Preferably, the folding joints 14 . 14 ' Universal joints on which an upright hinge axis 15 . 15 ' and a horizontal hinge axis 16 . 16 ' exhibit.

Advantageously, can also be a cranked arrangement of the universal joints 11 . 12 . 13 be realized to an embodiment with under the swing-wing frame 5 . 5 ' arranged windrows 2 . 2 ' . 3 . 3 ' . 4 . 4 ' to realize.

In addition, the boom can also 10 be formed in working position in a minimal boom length, for example, the rotary rake 2 . 2 ' further forward in the direction of travel 11 to position.

Furthermore, an electronic control for controlling the preferably hydraulic and / or electrical actuating means of the swing-wing frame 5 . 5 ' and / or the boom 10 for a turn, for example, depending on the steering angle of the host vehicle 7 , or specially provided for this purpose sensors or actuators advantage. Direction sensors could, for example, on the trailing wheels 9 . 9 ' be arranged when the base vehicle 7 does not offer such information.

Preferably, the angle of attack β for pivoting the boom about the vertical hinge axis 12 changeable, in particular independent of the opening angle α. In addition, the change in the angle of attack β can be advantageously used to vary the working width. The same can be done by the length variability of the boom 10 be realized in the working position. Advantageously, the longitudinal extent of the boom 10 aligned in the working position predominantly running in the direction of travel.

Furthermore, the boom 10 for transfer to the transport position about its horizontal hinge axis 13 pivotable. Here, the length variability of the boom can be used to reduce the transport height in an advantageous manner.

In addition, the coupling device is advantageously 6 with the middle frame 8th through a vertical joint 21 with a vertical axis 22 connected. It is preferably provided that the vertical joint 21 and its vertical axis 22 optionally bridged in the working position and thus locked, whereby a pivoting movement is prevented and can be canceled in the transport position, whereby the swivel possibility is released again.

1

swathers

2, 2 '

Windrowers

3, 3 '

Windrowers

4, 4 '

Windrowers

5, 5 '

Swivel sash

6

coupling device

7

Carrier vehicle, tractor

8th

center frame

9 9 '

Support and support trailing wheel

10

boom

11

folding joint (Universal joint)

12

vertical joint axis

13

horizontal joint axis

14 14 '

Folding joint, (Universal joint)

15 15 '

vertical Swivel axis (vertical axis)

16 16 '

horizontal swivel axis

17 17 '

Rotary actuator

18

rotor chassis

19

vertical transverse plane

20

vertical Longitudinal center plane

21

vertical joint

22

vertical axis

A

working width

F

direction of travel

S, S '

pan direction

X ₁ , X ₂

rotor spacing

X ' ₁ , X' ₂

rotor spacing

α

opening angle

β, β ',

angle of attack

β ₁ , β ₂ , β ₃

angle of attack

β ' ₁ , β' ₂ , β ' ₃

angle of attack

γ, γ '

swivel angle

δ, δ '

angle of attack

Claims (18)

Rotary swather with at least one adjustable, in particular about a substantially vertical axis of rotation ( 15 ) pivotable support frame ( 5 ), so that the support frame ( 5 ) from a transport position, in particular about the axis of rotation ( 15 ) is adjustable by a pivot angle (γ), in a working position and vice versa, wherein the support frame ( 5 ) at least two circumferentially driven by substantially vertical axes on the ground by wheels ( 18 ) supportable rotary rakes ( 2 . 3 . 4 ) are arranged for the collapse of crop, wherein in the transport position of the adjustable support frame ( 5 ) seen in the direction of travel (F) has a rear end portion and a front end portion, characterized in that viewed in the working position in the direction of travel (F) of the rear end portion of the adjustable support frame ( 5 ) in front of the front end portion of the adjustable support frame ( 5 ) is arranged. A rotary windrower according to claim 1, characterized in that in the transport position of the adjustable support frame ( 5 ) in the direction of travel (F) behind the axis of rotation ( 15 ) of the support frame ( 5 ) and that in the working position of the adjustable support frame ( 5 ) in the direction of travel (F) viewed in front of the axis of rotation ( 15 ) of the support frame ( 5 ) is arranged. Rotary swather according to one of the preceding claims, characterized in that in the transport position, the longitudinal axis of the support frame ( 5 ) is oriented substantially in the direction of travel (F). Rotary swather according to one of the preceding claims, characterized characterized in that the pivoting angle (γ) is substantially greater than 90 ° and is less than 170 °. A rotary windrower according to one of the preceding claims, characterized in that in the working position, the longitudinal axis of the support frame ( 5 ) is aligned with respect to the direction of travel (F) with a working angle (α / 2) substantially between 10 ° and 80 °. A rotary windrower according to any one of the preceding claims, characterized in that at least two about substantially vertical axes of rotation ( 15 ) pivotable support frame ( 5 ) are provided. A rotary windrower according to one of the preceding claims, characterized in that in the transport position, the two longitudinal axes of the support frame ( 5 ) are arranged substantially parallel to each other. A rotary windrower according to one of the preceding claims, characterized in that the support frame (s) ( 5 ) on a transversely oriented to the direction of travel (F) transverse frame ( 8th ) is / are arranged. Rotary swather according to one of the preceding claims, characterized in that on the transverse frame ( 8th ) is arranged at least one coupling device for coupling the rotary rake with a tractor. Rotary swather according to one of the preceding claims, characterized in that at least one pivoting unit has a pivoting axis provided between the transverse frame and the coupling device is. A rotary windrower according to any one of the preceding claims, characterized in that at least one locking unit is provided for locking the pivoting unit, so that at least in the working position, the transverse alignment of the transverse frame ( 8th ) is locked in relation to the tractor and / or to the direction of travel (F). A rotary windrower according to one of the preceding claims, characterized in that at least one of the windrow gyroscopes on a jib with the support frame ( 5 ) connected is. Rotary swather ( 1 ) according to one of the preceding claims, characterized in that the boom ( 10 ) rotatable about at least one axis on the support frame ( 5 ) is arranged. Rotary swather ( 1 ) according to one of the preceding claims, characterized in that the boom ( 10 ) as a variable-length boom ( 10 ) is trained. A rotary windrower according to one of the preceding claims, characterized in that in the working position, a working position of an operator in the direction of travel (F) viewed substantially at the height of the axis of at least one of the rotary rakes ( 2 . 3 . 4 ) is arranged. A rotary windrower according to one of the preceding claims, characterized in that in the working position, the working position of the operator in the direction of travel (F) behind the axis of at least one of the rotary rakes ( 2 . 3 . 4 ) is arranged. A rotary windrower according to any one of the preceding claims, characterized in that at least six rotary rakes driven circumferentially about substantially vertical axes, which can be supported by wheels on the ground ( 2 . 3 . 4 ) are provided for the collapse of crop. Rotary swather according to one of the preceding claims, characterized in that the supporting frame ( 5 ) at least one wheel ( 9 ) for moving the rotary rake at least in the transport position.