Attachment for a tractor and for field tillage

Abstract

The invention relates to an attachment (1) for a tractor and for field soil cultivation, in particular a rotary harrow or a rotary cultivator, comprising: - a support frame (2) for carrying soil cultivation tools (3, 11) and for connecting to a tractor, - at least one initial tillage tool (3) for loosening field soil, and - a guiding device (4) for guiding loosened field soil that has been loosened by the at least one first tillage tool (3), - wherein the distance (H1) between the guide device (4) and the at least one first soil cultivation tool (3) or the distance (H2) between the guide device (4) and the support frame (2) is adjustable.

Description

[0001] The invention relates to an attachment for a tractor and for field soil cultivation, such as a rotary harrow or a rotary cultivator.

[0002] Current technology includes attachments for tractors and for field soil cultivation, such as rotary harrows or rotary cultivators.

[0003] These attachments feature a support frame for carrying tillage implements. This support frame can, for example, include a gearbox housing. The distance between the underside of the gearbox housing and the tillage implements of the harrow or cultivator is fixed. This distance can only be changed by attaching additional components. However, this additional attachment is inconvenient for the user and also time-consuming to change.

[0004] Against this background, the object of the present invention is to provide an attachment for a tractor and for field tillage which ensures quick and convenient conversion of the attachment.

[0005] This problem is solved by the features of the independent patent claim. Further advantageous developments are the subject of the dependent claims.

[0006] An implement for a tractor and for field tillage comprises a support frame for carrying at least one tillage tool and for connection to a tractor, as well as at least one primary tillage tool for loosening the soil. The implement can be a rear-mounted implement. Furthermore, the implement can be designed or implemented as a rotary harrow or a rotary cultivator.

[0007] Furthermore, the attachment has a guiding device for directing loosened field soil that has been or is being loosened by at least one first tillage tool.

[0008] The distance between the guide device and the at least one first soil cultivation tool is adjustable or adjustable.

[0009] Alternatively, the distance between the guide device and the support frame can be adjusted or set.

[0010] The distance can be changed or set continuously or at predefined detents.

[0011] By means of the adjustable or adjustable distance, the loosened field soil can be divided into a first part, which can be guided above the at least one first tillage tool and thus past it, and into a second part, which can be guided towards the at least one first tillage tool.

[0012] As a result, the proportion of coarse and fine soil can be determined. The greater the desired proportion of fine soil, the greater the proportion of loosened topsoil that is directed towards the first tillage tool. In other words, the smaller the distance, the greater the proportion of loosened topsoil that can be directed towards the first tillage tool, and the greater the proportion of fine soil can be. Furthermore, the distance can be adjusted for different soil conditions, so that more or less soil is directed through the first tillage tool.

[0013] In the following description, the terms "adjustable," "changeable," and / or "adjustable" can be used interchangeably. This avoids unnecessary repetition and improves readability.

[0014] Furthermore, the guiding device can include a guide for the loosened field soil, which can be adjustable or adaptable, e.g., relative to the support frame and / or to at least one first tillage tool. The guide can thus be designed similarly to, or correspond to, the underside of a gearbox housing of the implement.

[0015] The distance between the guide and at least one first soil cultivation tool can be changed and / or adjusted.

[0016] Alternatively, the distance between the guide and the nearest end of at least one first tillage tool can be adjustable and / or set to a fixed position. The nearest end can be the end of a first tillage tool that is closest to the guide.

[0017] As a further alternative, the distance between the guide and a fastening location of at least one first soil tillage tool on a drive for the at least one first soil tillage tool, wherein the drive can be fastened to the support frame, can be adjustable and / or changeable.

[0018] Additionally or alternatively, the distance between the guide and the support frame can be adjustable and / or changeable.

[0019] Because the spacing is adjustable and / or variable, the proportion of fine and coarse soil, or fine and coarse loosened soil, can be determined or fixed. This allows the local conditions of the respective field soil to be taken into account.

[0020] Furthermore, it is possible for the guide to be configured in a funnel-shaped manner, tapering toward the at least one first tillage tool when viewed from the side, transverse to the direction of travel of the attachment, and / or to be arranged on the support frame. This allows loosened field soil to be guided safely, e.g., to at least one tillage tool.

[0021] The adjustable guide can be made from a single sheet of metal. This makes it easy and inexpensive to manufacture.

[0022] Furthermore, the guide device may include an adjustment mechanism with which the distance can be adjusted and / or changed and / or set.

[0023] The adjustment mechanism may comprise at least one coupling member that movably connects a guide of the guide device to the support frame. Thus, the adjustment mechanism may comprise a first and a second coupling member.

[0024] Furthermore, at least one coupling element can be rotatably mounted on the support frame and / or on a guide of the guide device. The guide can thus be pivotally mounted on the support frame via joints or coupling elements.

[0025] It is also conceivable that the adjustment mechanism includes an actuator with which a guide for the guide device or with which the distance to the support frame and / or with which the distance to at least one first soil cultivation tool can be adjusted and / or changed and / or set.

[0026] The actuator can be fastened with its first end to the guide device or to at least one coupling member or to the second coupling member, e.g. rotatably.

[0027] Furthermore, the actuator can be attached to the support frame with its second end, e.g. rotatably.

[0028] The actuator can be pneumatically or hydraulically operated. It can also be designed as a linear actuator or a rotary actuator.

[0029] Furthermore, at least one initial soil cultivation tool can include tines.

[0030] Furthermore, at least one of the soil cultivation tools can include a drive, which can be designed as a hydraulic or pneumatic drive. The drive can also be designed as a gearbox, which transmits rotational energy to the tines.

[0031] Furthermore, the attachment may include a leveling beam with which field soil loosened by at least one first tillage tool can be leveled and obstacles can be pushed downwards.

[0032] Furthermore, the attachment may include at least one second soil cultivation tool for reconsolidating the loosened field soil. The at least one second soil cultivation tool may comprise a roller.

[0033] The leveling bar can be arranged between the at least one first and second soil working tool.

[0034] Finally, it should be mentioned that the support frame can have a connection for a tractor, with which the attachment can be attached to a tractor and / or adjusted in height and / or supplied with energy.

[0035] The invention is explained in more detail below using an exemplary embodiment in conjunction with the accompanying drawings. The drawings schematically show: Fig. 1 a side view of an attachment for a tractor and for field soil cultivation in a first state; Fig. 2 the extension Fig. 1 in a second state; and Fig. 3 a spatial view of the extension Fig. 1.

[0036] In the following description, the same reference symbols are used for the same items.

[0037] Fig. 1 shows a side view of an attachment 1 for a tractor and for field tillage in a first state. Fig. 2 shows extension 1 from Fig. 1 in a second state, wherein in Fig. 3 a spatial view of extension 1 from Fig. 1 is shown.

[0038] To avoid unnecessary repetition, the following are the Fig. 1 to 3 described together.

[0039] Fig. Figures 1 to 3 show an attachment 1 for a tractor and for field tillage. Attachment 1 is a rear attachment. In this case, it is specifically designed as a rotary harrow or rotary cultivator.

[0040] According to the figures, the attachment comprises a support frame 2 for carrying soil cultivation tools 3, 11 and for connection to a tractor, as well as several first soil cultivation tools 3 for loosening a field soil.

[0041] Furthermore, the attachment 1 has a guiding device 4 for guiding loosened field soil that has been loosened by the first soil cultivation tools 3.

[0042] The figures show that the distance H1 between the guide device 4 and the first soil cultivation tools 3 or the distance H2 between the guide device 4 and the support frame 2 is adjustable or adjustable (cf. Fig. 1 and Fig. 2) The distance H1, H2 can be continuously adjusted or set at predetermined detents.

[0043] Thus, in the first state after Fig. 1 the distance H1 is greater than in the second state after Fig. 2, whereas the distance H2 in Fig. 1 is smaller than in Fig. 2.

[0044] Using the adjustable distance H1, H2, the loosened soil can be divided into a first portion that is guided above and thus past the first tillage tools 3, and a second portion that is guided towards the first tillage tools 3. This allows the proportion of coarse and fine soil to be determined. The greater the desired proportion of fine soil, the greater the proportion of loosened soil directed towards the first tillage tools 3. Conversely, the smaller the distance H1, the greater the proportion of loosened soil directed towards the first tillage tools 3 and the greater the proportion of fine soil.

[0045] According to the Fig. 1 to 3 the guide device 4 has a guide 5 for the loosened field soil, which is adjustable relative to the support frame 2 and to the first soil cultivation tools 3.

[0046] The distance H1 between the guide 5 and the first tillage tools 3 is adjustable or changeable. In other words, the distance H1 between the guide 5 and the nearest end of the first tillage tools 3 is adjustable or changeable. To put it another way, the distance H1 between the guide 5 and a mounting point of each first tillage tool 3 on a drive 3B, where the drive 3B is attached to the support frame 2, is adjustable or changeable.

[0047] Viewed from another perspective, the distance H2 between the guide 5 and the support frame 2 is adjustable or changeable.

[0048] Furthermore, the Fig. 1 and Fig. 2, that the guide 5, in a lateral view, transverse to the direction of travel F of the attachment 1, is designed in a funnel shape, tapering towards the first soil tillage tools 3. The adjustable guide 5 is formed by a sheet metal.

[0049] Furthermore, in the Fig. Figures 1 to 3 show that the guide device 4 includes an adjustment mechanism 6 with which the distance H1, H2 can be adjusted or changed.

[0050] The adjustment mechanism 6 has a first and second coupling member 7, 8, which movably connect the guide 5 of the guide device 4 to the support frame 2. The coupling members 7, 8 are rotatably arranged on the support frame 2 and on the guide 5.

[0051] In addition, the adjustment mechanism 6 has an actuator 9 with which the guide 5 of the guide device 4 or with which the distance H2 to the support frame 2 or with which the distance H1 to the first soil tillage tools 3 can be adjusted or changed.

[0052] The actuator 9 is rotatably mounted at its first end to the guide device 4 or the second coupling element 8. Furthermore, the actuator 9 is rotatably mounted at its second end to the support frame 2. Furthermore, the actuator 9 is hydraulically operable and designed as a linear actuator.

[0053] As the Fig. As also shown in Figures 1 to 3, each first soil tillage tool has 3 tines 3A and a drive 3B which is designed as a gear and with which rotational energy can be supplied to the tines 3A.

[0054] Furthermore, it can be seen from the figures that the attachment 1 comprises a leveling bar 10, with which field soil or earth loosened by the first soil cultivation tools 3 can be leveled and obstacles can be pushed downwards.

[0055] In addition, the attachment 1 has a second soil tillage tool 11 for reconsolidating the loosened earth or the loosened field soil, wherein the second soil tillage tool 11 comprises a roller 11.

[0056] Here, the leveling beam 10 is arranged between the first and second soil cultivation tools 3, 11.

[0057] Furthermore, the figures show that the support frame 2 has a connection 12 for a tractor, with which the attachment 1 can be fastened to a tractor, adjusted in height and supplied with energy. List of reference symbols 1 extension 2 supporting frames 3 first soil cultivation tool 3A prongs 3B drive 4 Guidance device 5 Leadership 6 Adjustment mechanism 7 first coupling link 8 second coupling link 9 Actuator 10 leveling bars 11 second tillage tool 12 Connection for a tractor F Direction of travel H1, H2 distance

Claims

[1] Attachment (1) for a tractor and for field soil cultivation, in particular a rotary harrow or rotary cultivator, comprising: - a support frame (2) for carrying at least one soil tillage tool (3, 11) and for connection to a tractor, - at least one first soil cultivation tool (3) for loosening a field soil, and - a guiding device (4) for guiding loosened field soil which has been loosened by the at least one first soil cultivation tool (3), - wherein the distance (H1) between the guide device (4) and the at least one first soil cultivation tool (3) or the distance (H2) between the guide device (4) and the support frame (2) is adjustable. [2] Cultivation according to claim 1, - wherein the guide device (4) comprises a guide (5) for the loosened field soil, which is adjustable, and - wherein the distance (H1) between the guide (5) and the at least one first soil cultivation tool (3) is adjustable and / or changeable. [3] Cultivation according to claim 1 or 2, - wherein the guide device (4) comprises a guide (5) for the loosened field soil, which is adjustable, and - wherein the distance (H2) between the guide (5) and the support frame (2) is adjustable and / or changeable. [4] Cultivation according to one of the preceding claims, - wherein the guide device (4) comprises an adjustment mechanism (6) with which the distance (H1, H2) is adjustable and / or changeable. [5] Cultivation according to claim 4, - wherein the adjusting mechanism (6) comprises at least one coupling member (7, 8) which movably connects a guide (5) of the guide device (4) to the support frame (2). [6] Cultivation according to claim 4 or 5, - wherein the adjusting mechanism (6) comprises an actuator (9) with which a guide (5) of the guide device (4) or with which the distance (H2) to the support frame (2) and / or with which the distance (H1) to at least one first soil cultivation tool (3) can be adjusted and / or changed. [7] Cultivation according to one of the preceding claims, - wherein the attachment (1) comprises a leveling bar (10) with which field soil loosened by at least one first soil tillage tool (3) can be leveled and obstacles can be pushed downwards. [8] Cultivation according to one of the preceding claims, - wherein the attachment (1) comprises at least one second soil tillage tool (11) for reconsolidating the loosened field soil. [9] Cultivation according to one of the preceding claims, - wherein the support frame (2) has a connection (12) for a tractor, with which the attachment (1) can be fastened to a tractor and / or adjusted in height and / or supplied with energy.

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