AGRICULTURAL WORK MACHINE

Description

[0001] The invention relates to an agricultural working machine according to the preamble of patent claim 1.

[0002] In the field of agriculture, a multitude of variants of towed, mounted, and / or self-propelled working machines are known. In addition to seed drills suitable for spreading material, in particular seed and / or fertilizer, on agricultural land, these include, among other things, soil tillage implements by means of which the arable soil of such land can be prepared and / or post-processed. Furthermore, this also includes tillage combinations consisting of a seed drill and a soil tillage implement, which are designed to combine the application of the material and the cultivation of the soil. In order to spread the material on the land or to cultivate the land accordingly, such agricultural working machines have at least one suitable working tool, which is suitably coupled to a support frame of the working machine.

[0003] Generic work tools can be positioned and / or moved at least partially at different heights depending on the position of the work machine, in particular between a working and transport position, and / or depending on the required working or penetration depth. For this purpose, such work tools, in particular in a plurality viewed transversely to a direction of travel of the work machine, are arranged so as to be adjustable in height, position, and / or orientation by means of at least one crossbar coupled to the work machine, in particular a common crossbar.

[0004] A generic work machine is described, for example, in EP 3 649 841 A1. The work machine comprises at least one support frame assigned to the work machine, having at least one receptacle for at least one crossbeam oriented substantially transversely to a direction of travel of the work machine. Furthermore, the work machine comprises at least one, in particular multi-part, bearing device, via which the crossbeam is arranged on the receptacle so as to be at least partially rotatable about its longitudinal axis. In an installed state, the bearing device and / or the crossbeam are circumferentially enclosed, at least in sections, on the one hand by the receptacle and, on the other hand, by at least one bridging element connected to the receptacle.

[0005] Document DE29810404U1 discloses a bearing for pressure rollers, cylinders or the like.

[0006] Document US2007201780 discloses bearing block assemblies for large rotating tubular parts, such as drive shafts for agricultural equipment.

[0007] A disadvantage of such machines is the relatively complex assembly and / or conversion processes of the crossbeam. With previous machines, both the positioning of the crossbeam and the, particularly simultaneous, guidance and handling of auxiliary tools in the form of tools for connecting necessary and / or detachable fasteners, which are particularly designed like screws, are the responsibility of the operator or user.

[0008] The object underlying the invention is therefore to design an agricultural working machine in such a way that the crossbeam can be connected to the working machine in a particularly simple and at the same time operationally reliable manner.

[0009] This object is achieved according to the invention in that connecting means which at least partially correspond to one another are provided on the receptacle and on the bridging element, via which connecting means the at least one bridging element can be connected to the receptacle without tools, in particular in a form-fitting manner, in particular for bridging and / or closing at least one assembly opening formed on the receptacle and / or closable.

[0010] As a result of this measure, the bridging element can be reversibly and non-destructively connected to the holder and thus to the support frame, at least essentially without additional detachable connecting means. This embodiment allows, on the one hand, particularly simple assembly and / or disassembly of the crossbeam and / or the associated bearing device, which, on the other hand, is simultaneously particularly reliable in operation. Handling of the bridging element is preferably further simplified in that the bridging element is formed as a single piece. The bridging element is particularly preferably designed in the manner of a laser-cut and / or stamped part, although machining from solid material or a cast part is also conceivable. In a disassembled state, the bridging element is preferably completely detached from the holder and thus from the support frame.In an alternative or additional embodiment, the bridging element can be permanently mounted on the support frame, particularly in a hinged manner, whereby the receptacle, particularly the mounting opening, is closed by pivoting and / or closing the bridging element. This significantly simplifies both the removal and attachment of the bridging element. Furthermore, this allows the crossbeam to be moved or repositioned particularly quickly and easily during a work process and / or immediately before a work process.

[0011] According to the invention, the term "tool-free" refers to an assembly and / or disassembly process that, at least as a rule, does not require any additional necessary aids, in particular tools, for additional detachable connecting means to implement the connection. However, this can also be understood to include assembly and / or disassembly processes in which the bridging element itself can be inserted into and / or removed from the receptacle using an aid, for example in the form of an impact and / or lever tool, to reduce the force required by a user or operator. The use of such an aid may be necessary, for example, after extended periods of operation and / or changeable weather conditions, particularly in the event of wear and / or distortion of the bridging element and / or the receptacle.

[0012] The crossbeam is preferably designed as a profile tube, in particular a hollow one on the inside, and is suitable for accommodating a plurality of agricultural tools and / or storage devices. The outer shape is particularly preferably angular, in particular square, although at least partially round, oval, and / or polygonal cross-sections are also conceivable.

[0013] In a preferred embodiment of the work machine according to the invention, at least one closable mounting opening is formed on the receptacle, the shape and / or dimensions of which correspond at least substantially to those of the bridging element, wherein the bridging element can preferably be inserted into the mounting opening like a puzzle. The connection between the bridging element and the receptacle is preferably designed in the manner of a clearance fit. With such an embodiment, the force required by a user or operator to insert or remove the bridging element is comparatively particularly low. Furthermore, both the receptacle and the bridging element are preferably made of the same, in particular metallic, material, thereby achieving a particularly high level of stability of the connection.

[0014] In a further development of the work machine according to the invention, an inner circumference of the receptacle, which is interrupted by the mounting opening, is closed by the bridging element in a manner that is at least almost seamless, in particular seamless, in the circumferential direction. The bridging element is arranged on the receptacle in such a way that both the receptacle and the bridging element have sections supporting the bearing device and thus the crossbeam along the inner circumference. The inner circumference is formed by the receptacle and the bridging element and is preferably designed, at least in sections, in particular at least substantially, in the shape of a circular segment and / or cylindrical. The inner circumference formed by the receptacle and the bridging element is particularly preferably circular and / or cylindrical. The bridging element forms an additional bearing surface for the at least one bearing device of the crossbeam.Forces, particularly in the form of contact forces and / or material stresses, can thus be transmitted and / or distributed over at least almost the entire circumference of the bearing device and / or the support. This design achieves a particularly reliable variant of the connection between the crossbeam and the support frame, and thus the working machine.

[0015] In another preferred embodiment of the work machine according to the invention, at least one first connecting means formed on the receptacle and / or the bridging element is designed as a holding cutout, and at least one corresponding second connecting means formed on the receptacle and / or the bridging element is designed as an insertion extension, in particular a bolt-like and / or pin-like one. The bridging element and the receptacle preferably each have a plurality of first and / or second connecting means, with a corresponding second connecting means being formed for each first connecting means. Particularly preferably, the insertion extension is molded and / or hook-shaped, in particular in the manner of a T-, L-, and / or other-shaped engaging element. Alternatively or additionally, the insertion extension can also be at least partially rounded, in particular in the shape of a circular and / or oval section.The retaining cutout is particularly preferably designed to correspond at least partially in shape and / or dimensions to the insertion extension, so that the insertion extension is at least almost completely enclosed by the retaining cutout when installed and / or connected. In a preferred embodiment, the at least one first connecting means is formed on the receptacle, and the at least one corresponding second connecting means is formed on the bridging element. This embodiment allows for particularly quick and / or easy assembly and / or disassembly of the bridging element and thus of the crossbeam.

[0016] In another development of the work machine according to the invention, the bridging element is arranged on the receptacle so as to project at least partially into the bearing device, wherein the bearing device is preferably designed to hold the bridging element at least partially, in particular in a displacement-proof manner, in the longitudinal direction of the crossbeam. The bridging element is thus arranged on the receptacle in a particularly simple manner so as to be at least almost firmly seated in the axial direction or in the longitudinal direction of the crossbeam. For this purpose, the bearing device preferably comprises at least one bearing body arranged laterally on the receptacle and / or the support frame, which bearing body is connected in particular in a form-fitting and / or force-fitting manner, for example by means of screw means, to the receptacle and / or alternatively or additionally to an opposite further bearing body, wherein the bridging element is axially orviewed in the longitudinal direction is arranged and / or clamped between the bearing body and the receptacle and / or the at least one further opposite bearing body.

[0017] Further details of the invention can be found in the example description and the drawings. The drawings show Fig. 1 shows an agricultural working machine designed as a seed drill in an at least partially raised transport position and in a perspective view from the rear; Fig. 2 shows an inventive connection between a support of the working machine and a built-in crossbeam in an enlarged partial view; Fig. 3 shows the support of Fig.2 and a mounted bridging element according to the invention with the crossbeam removed; and Fig.4 the receptacle and the bridging element according to the invention from Fig.3 in a separate state.

[0018] A section of an agricultural working machine 10 designed as a sowing machine is shown in the Fig.1 shown. The work machine 10 comprises at least one storage container (not shown in the figures) for holding distribution material, which can be conveyed via at least one pneumatic conveying system (likewise not shown) to at least one distribution unit 14, designed in particular in the manner of a distribution head. Starting from the distribution unit 14, the distribution material can be conveyed via conveying lines (not shown) to a plurality of share assemblies arranged transversely to a direction of travel F, each of which comprises at least one working tool 12, designed in particular as a disc share. Alternatively or in addition to the embodiment shown, the working tool 12 can also be designed at least partially as a roller, cylinder and / or tines.

[0019] It is understood that the described work machine can alternatively or additionally be designed as a towed, mounted and / or self-propelled agricultural spreading machine, soil tillage machine and / or tilling combination.

[0020] The shown share arrangements, in particular the working tools 12, are coupled via crossbeams 13 aligned at least substantially transversely to the direction of travel F to at least one receptacle 20 of a support frame 11 assigned to the working machine 10. In this exemplary embodiment, the respective crossbeams 13 are each connected to the working machine via a plurality of receptacles 20, in particular laterally opposite ones. As shown in the Fig.2 As can also be seen, each share arrangement, in particular each working tool 12, is connected to the crossbeam 13 by means of a support arm 120 and an associated overload protection device 121.

[0021] The work machine 10 further comprises a bearing device 21, arranged in particular on and / or within the receptacle 20 of the support frame 11 and on the crossbeam 13, via which the crossbeam 13 is mounted on the receptacle 20 and thus on the support frame 11 so as to be at least partially rotatable about its longitudinal axis L. The bearing device 21 is, for example, designed in several parts, although alternatively or additionally, a one-piece embodiment of the bearing device 21 is also conceivable. The crossbeam 13 is coupled to an adjusting device (not shown in the figures) which is designed to rotate the crossbeam 13, in particular remotely, about its longitudinal axis L and thus to pivot and / or adjust the work tools 12. Furthermore, the crossbeam 13 is passed through an assembly opening 22 formed on the receptacle 20 for assembly and / or disassembly purposes when the bearing device 21 is disassembled and / or detached.

[0022] In the installed state shown in Fig. 2 The bearing device 21 and / or the crossbeam 13 is circumferentially enclosed, at least in sections, on the one hand by the receptacle 20 and, on the other hand, by at least one bridging element 30 connected to the receptacle 20. The bridging element 30 is designed to be inserted into the mounting opening 22 and thus to at least partially, in particular almost completely, close and / or bridge the mounting opening 22.

[0023] The bridging element 30 and the mounting opening 22 are in the Fig.3 and Fig.4 particularly well visible, with the bridging element 30 in the Fig.3 connected to the receptacle 20 and in the Fig.4is detached from the receptacle 20. It can be seen that the shape and / or dimensions of the closable mounting opening 22 at least substantially correspond to the shape and / or dimensions of the bridging element 30. The bridging element 30 is thus designed to close an inner circumference 23 of the receptacle 20, which is interrupted by the mounting opening 22, at least almost seamlessly in the circumferential direction. In the installed state, the bearing device 21 is thus supported by at least a first section 24 of the receptacle 20 and at least a second section 31 of the bridging element 30. The second section 31 of the bridging element 30 thus forms a bearing surface additional to the receptacle 20, which is designed to transmit forces, in particular in the form of bearing and / or contact forces.

[0024] For simplified assembly purposes, at least partially mutually corresponding connecting means 40A-41B are further provided on the receptacle 20 and on the bridging element 30, by means of which the at least one bridging element 30 can be connected to the receptacle 20 without tools, in particular in a form-fitting manner.

[0025] First connecting means 40A, 40B formed on the receptacle 20 are, for example, designed as retaining cutouts and are arranged in particular directly along the mounting opening 22. Second connecting means 41A, 41B formed on the bridging element 30, which are each assigned to a respective first connecting means 40A, 40B, are each designed as a bolt- and / or pin-like insertion extension.

[0026] In this exemplary embodiment, the connecting means 40A-41B are T-shaped, with the second connecting means 41A, 41B being configured to engage behind the first connecting means 40A, 40B in the connected state, so that the second connecting means 41A, 41B are at least partially enclosed by the respective associated first connecting means 40A, 40B. Alternatively or additionally, the connecting means 40A-41B may also have other shapes, in particular interlocking ones. Alternatively or additionally, the connecting means 40A-41B may also be at least partially L-shaped and / or oval-shaped.

[0027] It is further provided that the bridging element 30 can be inserted into the mounting opening in a puzzle-like manner. For assembly or disassembly, the bridging element 30 is pushed into or out of the mounting opening in a direction that corresponds at least substantially to the longitudinal axis L of the crossbeam 13. Even further simplified handling for an operator is achieved by the second connecting means 41A, 41B being integrally formed and / or the bridging element 30 being formed in one piece.

[0028] Alternatively or additionally to the embodiment shown, at least one first or all of the first connecting means 40A, 40B can be formed on the bridging element 30 and / or a second or all of the second connecting means 41A, 41B can be arranged on the receptacle 20. Furthermore, the bridging element 30 can alternatively or additionally also be permanently connected, in particular hinge-like, to the receptacle 20 at least in sections and have at least one connecting means 40A-41B for closing and / or opening the mounting opening 22.

[0029] In the installed state of the crossbeam 13, the bridging element 30 is held in the axial direction or in the longitudinal direction of the crossbeam 13 by the bearing device 21. The bridging element 30 is arranged on the receptacle 20 so as to protrude at least partially into the bearing device 21, as shown in the Fig.2can be seen. For this purpose, the bearing device 21 comprises at least one first bearing body 210 arranged laterally on the receptacle 20, which is in particular at least partially disc-shaped and is connected to the receptacle 20 and / or the support frame 11 by means of screw means 211. Alternatively or additionally, the bearing device 21 can comprise at least one further second bearing body arranged opposite the first bearing body 21 on the receptacle 20, which is connected to the receptacle 20 and / or the first bearing body 21 by means of screw means 211. The bearing device 21 and / or the at least one bearing body 210 can alternatively or additionally be connected to the support frame 11 or the crossbeam 13 in the manner of a clamping connection. The screw means 211 shown are also examples and can alternatively be supplemented and / or replaced by a form-fitting and / or material-fitting connection, in particular on the bearing body 210. List of reference symbols

[0030] 10agricultural work machine 11supporting frame 12working tool 120supporting arm 121overload protection 13crossbeam 14distribution unit 20receiver 21bearing device 210bearing body 211screw 22mounting opening 23inner circumference 24supporting section of the receiver 30bridging element 31supporting sections of the bridging element 40A, 40bursting connecting element 41A, 41Bsecond connecting element FDiration direction LLongitudinal axis of the crossbeam

Claims

1. Agricultural work machine (10), in particular sowing and / or soil-cultivating machine, comprising - at least one support frame (11) assigned to the work machine (10) having at least one receptacle (20) for at least one crossbeam (13) aligned substantially transversely to a direction of travel (F) of the work machine (10), - and at least one bearing device (21) via which the crossbeam (13) is arranged on the receptacle (20) so as to be at least partially rotatable about its longitudinal axis (L), wherein the bearing device (21) and / or the crossbeam (13) are, in an installed state, peripherally enclosed at least in portions on one side by the receptacle (20) and on the other side by at least one bridging element (30) connectable to the receptacle (20), and wherein connecting means (40A-41B) corresponding at least in part to one another are provided on the receptacle (20) and on the bridging element (30), via which connecting means the at least one bridging element (30) can be connected to the receptacle (20) without tools, in particular in a form-fitting manner, in particular for bridging and / or closing at least one mounting opening (22) formed and / or closable on the receptacle (20), the bridging element (30) is arranged on the receptacle (20) so as to protrude at least in part into the bearing device (21), wherein the bearing device (21) is preferably designed to retain the bridging element (30) at least in part, in particular in a displacement-proof manner, in the longitudinal direction of the crossbeam (13), and wherein the bearing device (21) comprises at least one bearing body (210) arranged laterally on the receptacle (20) and / or the support frame (120), which is connected, in particular in a form-fitting and / or force-fitting manner, to the receptacle (20) and / or to an opposite further bearing body (210), wherein the bridging element (30) is arranged and / or clamped in the axial or longitudinal direction between the bearing body (210) and the receptacle (20) and / or the at least one further opposite bearing body (210).

2. Work machine (10) according to claim 1, characterized in that at least one closable mounting opening (22) is formed on the receptacle (20), the shape and / or dimensions of which correspond at least substantially to that of the bridging element (30), the bridging element (30) preferably being insertable into the mounting opening (22) in a puzzle-like manner.

3. Work machine (10) according to claim 2, characterized in that an inner circumference (23) of the receptacle (20) interrupted by the mounting opening (22) is closed at least almost without transitions, in particular seamlessly, by means of the bridging element (30) in the circumferential direction.

4. Work machine (10) according to at least one of the preceding claims 1 to 3, characterized in that at least one first connecting means (40A, 40B) formed on the receptacle (20) and / or the bridging element (30) is designed as a retaining cutout and at least one corresponding second connecting means (41A, 41B) formed on the receptacle (20) and / or the bridging element (30) is designed as an in particular a bolt-like and / or pin-like insertion extension.