EP3219440A1 - Processing segment for a soil processing machine, adapter system for a soil processing machine, soil processing machine and tool used for that purpose - Google Patents

Abstract

The present invention relates to a processing segment 1 and an adapter system 10 of a tillage machine. The machining segment 1 has a base body 2 with a machining side 3 and a fastening side, the fastening side being arranged on the side of the base body 2 opposite the machining side 3. The attachment side has at least a first attachment member for releasably securing the processing segment to the adapter system. The machining side 3 is designed as a closed machining surface 5. The adapter system 10 has a receiving side 11, which has at least one receptacle 12. The receptacle 12 has at least one second fastening element for the releasable attachment of the machining segment 1 in the receptacle 12. Finally, the invention also relates to a tillage machine and a tool.

Description

The present invention relates to a processing segment for an adapter system of a soil cultivation machine, an adapter system, a soil cultivation machine and a tool for use with an adapter system according to the invention and / or a soil cultivation machine according to the invention.

Such tillage machines are usually designed as floor grinding machines and are usually used for surface treatment of soils. With such tillage machines, for example, concrete, asphalt, natural stone or other floor surfaces are ground, polished or otherwise surface-treated. Furthermore, floor grinding machines are also used for the treatment of soil surface, for example, to remove adhesive residue, putty residues, etc.

For this purpose, the tillage machine has a drive shaft to which a grinding tool is attached. As a rule, the grinding tool has a carrier plate with a largely flat processing side facing the bottom to be processed, which is set in rotation by the drive shaft. For clarification, it should be pointed out that the statements "axially" and "radially" used below refer to the longitudinal extension of the drive shaft or to the axis of rotation of the carrier plate or of a component comparable thereto. By moving the soil tillage machine over the soil to be processed, the uppermost layer of the soil is processed by the rotating grinding tool, in particular removed or abraded. Of course, the grinding tool after a certain period of use, for example, depending on the soil to be processed, worn and must be replaced to obtain a satisfactory machining result.

In the known tillage machines, the entire grinding tool is usually dismantled and replaced. This is on the one hand extremely expensive, since the grinding tool is usually secured with a plurality of screws to a corresponding attachment portion of the drive shaft. On the other hand, the processing surface is firmly connected to the carrier plate, so that the entire unit must be disposed of or recycled. Not least for sustainability and environmental reasons, this is not up to date.

Furthermore, this also increases the costs, in particular the storage and logistics costs. The carrier plates of the grinding tools have a diameter of 230 mm, 270, for example mm, 280 mm or 400 mm, so that a wholesaler must hold a variety of such abrasive tools. The storage space required for this purpose is accordingly large. At the construction site itself, several of these grinding tools must be maintained during the processing time, not to extend the processing times by even more extended downtime of the tillage machine.

The above-mentioned effects are multiplied by the fact that different grinding tools have to be used, depending on the type of soil to be worked or the progress of the soil preparation. For example, for coarse machining, first use a grinding tool with coarse grain size, wherein a final fine grinding is carried out with a correspondingly finer grain size of the grinding tool.

From the prior art solutions are also known in which individual processing segments are fixed on a support plate, such as in the DE 202 20 969 U1 shown. Nevertheless, here are the working surfaces or structures firmly connected to a solid sub-carrier, which in turn is screwed or soldered to the support plate. In an individual exchange of the processing segments, which is not considered in any case, the entire sub-carriers must be dismantled, if at all possible. Furthermore, in the case of a screw connection, not all of the surface of the subcarrier is available as a processing surface, since passage areas for the screws must always be present.

It is therefore the object of the present invention to minimize or eliminate the abovementioned disadvantages occurring in tillage with soil tillage machines and, in particular, to show a more sustainable and significantly reduced cost system.

The object is achieved with a processing segment for an adapter system of a tillage machine according to claim 1, an adapter system for a tillage machine according to claim 6, a tillage machine according to claim 15 and a tool for use therefor according to claim 16. Advantageous developments are described in the dependent claims.

The processing segment according to the invention for an adapter system of a tillage machine has a main body with a processing side and a mounting side. The attachment side is arranged on the side opposite the machining side of the base body. According to the invention, the fastening side has at least one first fastening element for detachably fastening the machining segment to the adapter system, the machining side being designed as a closed machining surface. In other words, the machining segment has two sides, wherein the machining segment can be fastened to the fastening side on an adapter system. Furthermore, the Machining surface formed completely closed, so without openings, receptacles or holes for locking means such as screws or the like. Thus, the effectively available processing area is increased, so that overall a longer service life of the processing segment can be achieved. Furthermore, the machining segment according to the invention essentially consists only of a base body with a fastening side and a machining side, so that in the case of an exchange only the single machining segment has to be replaced. The adapter system, which takes over the function of the carrier plate, remains firmly connected to the soil tillage machine and does not have to be disassembled or disposed of.

It is advantageous if the first fastening element has at least one torsionally rigid first connecting means for the positive and / or non-positive fastening of the machining segment. In particular, it has proved to be advantageous if the first connecting means is a Velcro. Accordingly, the complementary Velcro is arranged on the adapter system. Thus, the machining segment can be attached to the adapter system with reduced expenditure by placing the machining segment essentially in the axial direction on the adapter system or lifting it off, without the need for further fastening work (such as, for example, tightening or loosening screws). Furthermore, the working surface may thus also extend over the entire processing side facing the bottom in operation, since no openings or the like are necessary for receiving screws, for example. Rather, the first connection means designed as a climbing means need not be reachable with a tool or the like for fastening.

Conveniently, the base body is disc-shaped, in particular circular disc-shaped. In this context, it is advantageous if the base body has a diameter of 60 mm to 150 mm, advantageously 80 to 130 mm and in particular 100 mm. This results in a sufficiently large processing area with reduced space requirements. Overall, this results in a particularly good handling of the individual machining segment.

It is advantageous if the processing surface has metal-bonded and / or diamond-bonded and / or plastic-bonded abrasive structures. Depending on the type of soil to be processed, a suitable processing segment can thus be selected in order to achieve an optimum processing result while at the same time reducing the amount of dust.

The solution of the problem also succeeds with an adapter system for a tillage machine according to claim 6. The adapter system can be attached to a tillage machine. The adapter system according to the invention is distinguished from the known from the prior art adapter systems in that the adapter system has a receiving side with at least one receptacle, wherein the receptacle at least a second Fastening element for releasably securing a machining segment in the receptacle. Thus, the advantages mentioned above in connection with the processing segment according to the invention result, on the one hand, in that no great expense is required for the replacement of one processing segment. On the other hand, the handling is significantly improved because not the entire adapter system is exchanged in terms of a support plate with fixed thereto processing surface. Rather, the adapter system remains on the tillage machine and only in the dimension significantly smaller machining segment is replaced if necessary.

It is advantageous if the second fastening element has at least one torsionally rigid second connecting means for non-positive and / or positive fastening of the machining segment. In particular, it has proven to be advantageous if the second connecting means is a Velcro. Accordingly, the complementary Velcro is arranged on the processing segment. Thus, the machining segment can be attached to the adapter system with reduced expenditure by placing the machining segment essentially in the axial direction on the adapter system or lifting it off, without the need for further fastening work, as would be the case, for example, when tightening or loosening a screw.

Conveniently, this has the second fastener on a spring unit. Thus, it can be ensured that the at least one processing segment accommodated in the at least one receptacle can adapt to unevenness in the floor due to the floating storage. Furthermore, it is also prevented that the processing surface is subject to increased wear due to excessive contact pressure. Of course, the spring unit can also be designed as a damper unit or in combination with such, without this would constitute a disadvantage for the processing result.

It is advantageous if the spring unit is a composite component. In the context of the invention, a composite component is to be understood as meaning a component which has a metal part and a plastic part which is inseparably connected to the metal part. In particular, the plastic part is a foamed plastic. The foamed plastic or its material properties is chosen so that the desired suspension behavior of the machining segment is achieved. Thus, this results in a sandwichartigiger structure, at least consisting of plastic part, metal part and second connecting means, preferably in the order mentioned. It is also conceivable that the spring unit or a further spring unit is arranged on the processing segment, if this is necessary for the purpose. It is also conceivable that the plastic part is arranged between two metal parts in order to achieve a particularly stable attachment.

Conveniently, the adapter system is disc-shaped, in particular round disc-shaped, wherein the adapter system has a plurality of preferably circular arranged on the receiving side receptacles for receiving processing segments. It has shown, that it is particularly advantageous if the images have an area fraction of 25% to 50%, in particular of 30% to 45% and particularly advantageous from 35% to 40% of the receiving surface, so that a particularly good processing result is achieved because the processing surfaces of the arranged in the recordings processing segments make up an equal area share. In this context, it is advantageous if the receptacles are arranged substantially along the circumference of the adapter system. It is advantageous if the receptacles are arranged only along the circumference, ie in the radial direction lying outside with respect to the axis of rotation of the adapter system. It has been found that when the receptacles are arranged relatively close to the axis of rotation of the adapter system, uneven loading of the processing segments arranged in the receptacles can occur. On the one hand, this can lead to uneven wear of the machining segments. On the other hand, this may also result in a heterogeneous machining result, which may be further worsened by the uneven wear.

It is advantageous if the at least one receptacle has at least one boundary wall, wherein the boundary wall extends in the axial direction from the receiving side of the adapter system. In particular, the boundary wall is formed such that a processing segment arranged in the receptacle is arranged substantially inside the receptacle or in the axial direction inwardly relative to the boundary wall, at least during operation of the soil cultivating machine, wherein the processing surface of the processing segment in the axial direction of the boundary wall protrudes. In this way, it is possible to prevent a processing segment from emigrating - for example as a result of the centrifugal forces that occur. Of course, the boundary wall is designed so that it does not come into contact with the soil to be processed even when acted upon by the spring unit during operation of the soil working machine with an axially inwardly acting force. It is also conceivable that, during operation, the processing segment so displaces the axially inwardly acting force against the spring force of the spring unit that the processing segment is only prevented by the boundary wall from emigrating.

It is expedient here if the boundary wall has at least one tool opening for receiving a tool. Thus, the tool can be introduced to quickly and largely effortlessly remove a recorded in the recording processing segment.

In operation, the adapter system has at least one machining segment according to the invention, wherein the at least one machining segment is fastened in the at least one receptacle. It has been shown that a particularly good machining result is achieved if preferably a plurality of machining segments are fastened in a plurality of receptacles, in particular if six receptacles are provided in a circular arrangement along the circumference of the adapter system. The object is further achieved with a soil cultivation machine according to claim 15, which has an inventive adapter system. In particular, the tillage machine is a floor grinding machine.

Furthermore, a tool according to the invention is proposed, wherein the tool is used for use with an adapter system according to the invention and / or a ground-working machine according to the invention. The tool has a nose and a lever shaft, wherein the nose is insertable between the receiving side of the adapter system and the attachment side of the processing segment, that the processing segment is removable by moving the lever shaft relative to the adapter system from the receptacle. Thus, a fixed in the recording processing segment can be quickly removed by moving the lever shaft with little effort from the recording when, for example, a wear-related replacement is pending.

Fig. 1A

eine perspektivische Ansicht eines Bearbeitungssegments gemäß einer ersten Ausführungsform;

Fig. 1B

eine perspektivische Ansicht eines Bearbeitungssegments gemäß einer zweiten Ausführungsform;

Fig. 2

eine perspektivische Rückansicht eines Bearbeitungssegments;

Fig. 3

eine perspektivische Ansicht eines Adaptersystems ohne zweite Befestigungselemente und ohne aufgenommene Bearbeitungssegmente;

Fig. 4

das in Fig. 3 gezeigte Adaptersystem mit zweiten Befestigungselementen;

Fig. 5

das in Fig. 4 gezeigte Adaptersystem mit aufgenommenen Bearbeitungssegmenten;

Fig. 6

eine Seitenansicht eines zweiten Befestigungselements;

Fig. 7

eine perspektivische Ansicht eines Werkzeugs;

Fig. 8

eine perspektivische Ansicht des in Fig. 7 gezeigten Werkzeugs zum Entfernen eines Bearbeitungssegments aus einem Adaptersystem;

Fig. 9

eine zweite Ausführungsform eines erfindungsgemäßen Adaptersystems mit nur einem zweiten Befestigungselement; und

Fig. 10

eine Bodenbearbeitungsmaschine mit einem Adaptersystem und darin aufgenommenen Bearbeitungssegmenten.

The invention will be explained in more detail with reference to embodiments shown in the drawings. Here are shown schematically:

Fig. 1A

a perspective view of a processing segment according to a first embodiment;

Fig. 1B

a perspective view of a machining segment according to a second embodiment;

Fig. 2

a perspective rear view of an editing segment;

Fig. 3

a perspective view of an adapter system without second fasteners and without recorded processing segments;

Fig. 4

this in Fig. 3 shown adapter system with second fasteners;

Fig. 5

this in Fig. 4 shown adapter system with recorded processing segments;

Fig. 6

a side view of a second fastening element;

Fig. 7

a perspective view of a tool;

Fig. 8

a perspective view of the in Fig. 7 shown tool for removing a machining segment from an adapter system;

Fig. 9

a second embodiment of an adapter system according to the invention with only a second fastening element; and

Fig. 10

a tillage machine with an adapter system and received therein processing segments.

In Fig. 1A is a processing segment 1 shown, which is a circular disk-shaped base body 2 with a processing side 3 and a mounting side 4 (see. Fig. 2 ) having. How to get out Fig. 1A and Fig. 2 detects, the machining side 3 is arranged on one side of the base body 2, and the mounting side 4 is disposed on the other, the machining side 3 opposite side of the base body 2. The fastening side 4 has a first fastening element 6. The fastening element 6 has a torsionally rigid first connecting means 7, which is also substantially circular disk-shaped and the mounting side 4 largely covered, as in Fig. 2 shown. In this embodiment, the first connecting means 7 is a Velcro, which allows a torsionally rigid attachment.

As in Fig. 1A shown, the machining side 3 is formed as a closed processing surface 5. The processing surface 5 has grinding structures 8 which extend in the axial direction from the processing side 3. In the in Fig. 1A 4 embodiment, four centrally arranged octagonal grinding structures 8 are provided, as well as four further arranged on the circumference of the processing segment 1 polygonal grinding structures. 8

A further exemplary embodiment of a processing segment 1 according to the invention is shown in FIG Fig. 1B shown. This is different from the one in Fig. 1A shown embodiment only in the form and arrangement of the abrasive structures 8. As in Fig. 1B illustrated, the grinding structures 8 may also be formed round cylindrical. The abrasive structures 8 may be formed as metal-bonded, diamond-bonded and / or plastic-bonded abrasive structures 8. Depending on which type of soil treatment is to be performed, suitable processing segments 1 are selected and attached to an adapter system 10, as will be explained in more detail below.

In the Fig. 3 to 5 an inventive adapter system 10 is shown, wherein Fig. 3 shows the adapter system without second fastening elements 13, Fig. 4 shows the adapter system 10 with second fasteners 13 and Fig. 5 shows the adapter system 10 with attached processing segments 1. As can be seen in the figures, the adapter system 10 is formed circular disk-shaped.

The adapter system 10 has a receiving side 11 with a plurality of receptacles 12 for receiving processing segments 1 (see. Fig. 5 ). In the illustrated embodiment, the adapter system 10 has six receptacles 12, which are arranged in a circle at regular intervals along the circumference U of the adapter system 10. As in Fig. 4 1, each receptacle 12 has four second fastening elements 13. The fasteners 13 are the same structure, designed as a round cylinder and arranged evenly within the receptacle 12.

In Fig. 6 a cut-free second fastener 13 is shown in side view. The fastening element 13 has a torsionally rigid second connecting means 14. The second connecting means 14 extends substantially parallel to the receiving side 11 of the adapter system 10. In this embodiment, the second connecting means 14 is a Velcro, which is complementary to the first connecting means 6 also designed as a Velcro. Other torsionally rigid connection means 6 and 14 are also conceivable, for example in the form of a bayonet lock or the like.

Furthermore, the second fastening element 13 has a spring unit 15. The spring unit 15 is a composite component which has a metal part 16 and a plastic part 17. The metal part 16 is circular-disk-shaped and arranged between the second connecting means 14 and the plastic part 17. The plastic part 17 is in this embodiment, a plastic foam part, with certain elastic properties that define the suspension or damping behavior of the spring unit 15.

Furthermore, the second fastening element 13 has a central through hole 20 for receiving a (not shown) locking means. Thus, the second fastening element 13 can be fixed on the receptacle 12 of the adapter system 10 via a corresponding locking means receptacle 21.

The receptacles 12 of the adapter system 10 also have boundary walls 18. The boundary walls 18 extend in the axial direction from the receiving side 11 of the adapter system 10 and form a substantially circular boundary of the receptacle 12. Furthermore, the boundary walls 18 per receptacle 12 each have two openings 19. The openings 19 point radially outwards and are arranged along the circumference U of the adapter system 10. The openings 19 serve to receive a tool 100, as will be explained in more detail below.

The boundary walls 18 of the individual receptacles 12 are interconnected with stiffening ribs 22, which also extend in the axial direction of the receiving side 11 of the adapter system 10, and stabilize the adapter system 10 in itself. Such as in Fig. 3 can be seen, the stiffening ribs 22 are arranged pointing radially inwardly star-shaped. Further, two arcuate in the direction of the circumference U of the adapter system 10 extending stiffening ribs 22 are arranged between the individual receptacles 12.

For attaching a processing segment 1 to the adapter system 10, the processing segments 1 are inserted in the axial direction in the corresponding receptacle 12 until the first connecting means 7 of the machining segment 1 comes into contact with the second connecting means 14 of the receptacle 12 of the adapter system 10. By slight pressure in the axial direction, the processing segment 1 is then releasably secured in the receptacle 12. Since the first connecting means 6 almost completely covers the fastening side 4 of the machining segment 1 (cf. Fig. 2 ), the orientation of the machining segment 1 relative to the receptacle 12 is irrelevant.

To remove a processing segment 1 from a receptacle 12 is in Fig. 7 To use tool 100 shown. The tool 100 has a nose 101 and a lever shaft 102. The nose 101 is connected via a curved transition piece 103 with the lever shaft 102. Further, the nose 101 is designed so that it can be inserted through an opening 19 of a boundary wall 18 of a receptacle 12 in the receptacle 12, as in Fig. 8 is shown. The nose 101 is arranged in this state in the axial direction between the receiving side 11 of the adapter system 10 and the attachment side 4 of the machining segment 1. By moving the lever shaft 103 relative to the adapter system 10, the tool 100 tilts in the region of the rear edge of the nose 101, so that the nose 101 is displaced in the direction of the fastening side 4 of the machining segment 1. The nose 101 contacts the attachment side 4 of the machining segment 1 and presses the machining segment 1 in the axial direction of the receptacle 12. Here, the connection between the first fastening element 6 of the machining segment 1 and the four second fastening elements 13 of the receptacle 12 is released and the processing segment 1 can be lifted from the adapter system 10.

In Fig. 9 a second embodiment of the adapter system 10 according to the invention is shown. This in Fig. 9 shown adapter system 10 differs from the adapter system described above in that the receptacle 12 has only a second fastening element 13a. The second fastening element 13a shown in this figure is constructed substantially the same as that in FIG Fig. 6 shown second fastener 13, so with a formed as a composite component spring unit 15. Since the second fastener 13a according to Fig. 9 the receptacle largely completely fills, the second fastener 13 has two cuts 23 for receiving the nose 101 of the tool 100. In Fig. 9 For example, the tool 100 is exemplified, with the tab 101 received within a notch 23. It can be clearly seen that the nose 101 extends through the aperture 19 and is arranged between the receiving side 11 of the adapter system and the machining side 4 of the machining segment 1 (not shown).

In Fig. 10 a tillage machine 200 is shown. The soil working machine 200 is a floor grinding machine and has an adapter system 10 according to the invention with six machining segments 1 according to the invention attached thereto. During operation of the soil working machine 200, the grinding structures 8 of the processing surface 5 of the Machining segment 1 on the ground surface to be worked on. The drive shaft of the soil working machine 200 (not shown) rotates the adapter system 10 and the processing segments 1 fastened in a torsionally rigid manner, so that the surface is processed, in particular stratified, by the abrasive structures 8. Due to the floating storage of the processing segments 1 generated via the spring units 15, an optimum processing result is achieved.

LIST OF REFERENCE NUMBERS

1

processing segment

2

body

3

edit page

4

mounting side

5

working surface

6

first fastening element

7

first connecting means

8th

grinding structure

10

adapter system

11

Up side

12

admission

13

second fastening element

13a

second fastening element

14

second connection means

15

spring unit

16

metal part

17

Plastic part

18

boundary wall

19

breakthrough

20

Through Hole

21

Parking borrowing

22

stiffening rib

23

incision

100

Tool

101

nose

102

lever shaft

103

Transition piece

200

Tillage machine

U

scope

Claims (16)

Processing segment (1) for an adapter system (10) of a tillage machine (200), wherein the processing segment (1) has a base body (2) with a processing side (3) and a mounting side (4), wherein the mounting side (4) on the Machining side (3) opposite side of the base body (2) is arranged, wherein the fastening side (4) at least a first fastening element (6) for releasably securing the machining segment (1) on the adapter system, and wherein the machining side (3) as a closed processing surface (5) is formed. Machining segment (1) according to claim 1, characterized in that the first fastening element (6) has at least one torsionally rigid first connecting means (7) for non-positive and / or positive fastening of the machining segment (1). Machining segment (1) according to claim 1 or 2, characterized in that the base body (2) is disk-shaped, in particular circular disk-shaped. Machining segment (1) according to claim 3, characterized in that the base body (2) has a diameter of 60 mm to 150 mm, advantageously of 80 to 130 mm and in particular of 100 mm. Machining segment (1) according to one of the preceding claims, characterized in that the machining surface (5) has metal-bonded, diamond-bonded and / or plastic-bonded abrasive structures (8). Adapter system (10) for a soil tillage machine (200), wherein the adapter system (10) on the tillage machine (200) can be fastened, characterized in that the adapter system (10) has a receiving side (11) with at least one receptacle (12) the receptacle (12) has at least one second fastening element (13, 13a) for the releasable fastening of a machining segment (1) in the receptacle (12). Adapter system (10) according to one of the preceding claims 6, characterized in that the second fastening element (13, 13a) at least one torsionally rigid second connecting means (14) for non-positive and / or positive fastening of the machining segment (1). Adapter system (10) according to claim 6 or 7, characterized in that the second fastening element (13, 13a) has a spring unit (15). Adapter system (10) according to claim 8, characterized in that the spring unit (15) is a composite component (16, 17). Adapter system (10) according to any one of the preceding claims 6 to 9, characterized in that the adapter system (10) is disk-shaped, in particular circular disk-shaped, wherein the adapter system (10) a plurality of preferably circular on the receiving side (11) arranged receptacles (12) Recording of processing segments (1). Adapter system (10) according to claim 10, characterized in that the receptacles (12) are arranged substantially along the circumference (U) of the adapter system (10). Adapter system (10) according to one of the preceding claims 6 to 11, characterized in that the at least one receptacle (12) has at least one boundary wall (18), wherein the boundary wall (18) in the axial direction of the receiving side (11) of the adapter system (10) extends. Adapter system (10) according to claim 12, characterized in that the boundary wall (18) has at least one tool opening (19) for receiving a tool (100). Adapter system (10) according to one of the preceding claims 6 to 13, characterized in that the adapter system (10) has at least one processing segment (1) according to one of claims 1 to 5, wherein the at least one processing segment (1) in the at least one receptacle (12) of the adapter system (10) is attached. Soil cultivation machine (200) with an adapter system (10) according to claim 14, wherein the tillage machine (200) is in particular a floor grinding machine. A tool (100) for use with an adapter system (10) according to claim 14 or a soil tillage implement (200) according to claim 15, wherein said tool (100) has a nose (101) and a lever shaft (102), said nose (101) between the receiving side (11) of the adapter system (10) and the mounting side (4) of the machining segment (1) can be inserted, that the machining segment (1) by moving the lever shaft (102) relative to the adapter system (10) from the receptacle (12 ) is removable.

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