EP3341172B1 - Apparatus for removing construction material - Google Patents

Description

The invention relates to a device for removing building material according to the preamble of claim 1.

Such a device is off EP 1 266 737 A2 known. This known device for removing a brittle component of a building material has a rotatable around a central longitudinal axis Abtragseinheit having groups of impact discs. The impact disks of each group are mounted with play in the radial direction on a disk bearing axis. The disk bearing axles in turn are arranged at a radial distance from the central longitudinal axis. In this prior art device several groups of impact discs are present in the circumferential direction.

Out WO 2005/091877 A2 is another device for removing material known, which has about a central axis rotatable Abtragseinheit having groups of cutting wheels. The cutting wheels of each group are mounted on a wheel bearing axle. Each cutter wheel is equipped along the circumference with a number of hardened, projecting chisels.

The invention is based on the object to provide a device of the type mentioned above, which is characterized by an efficient removal of construction material such as reinforced concrete, which has at least one ductile component such as in particular reinforcing steel elements and at least one brittle component such as concrete.

This object is achieved according to the invention in a device of the type mentioned above with the characterizing features of claim 1.

Characterized in that in the device according to the invention in the circumferential direction and / or in the axial direction adjacent to a group of impact discs at least one set for cutting removal of a ductile component of a construction material cutting base is arranged, can be made of at least one ductile component and at least one brittle Component built-up material by targeted use of the impact disks for acting on the or each brittle component and the or each cutting base for machining erosive action on the or each ductile component remove very efficiently, since for each component on their specific mechanical properties adapted Abtragswerkzeuge are present.

In this context, it is particularly advantageous that the active edges of the or each cutting base lie between radial end positions of the impact disks, wherein the impact disks preferably have elevations radially outwardly defining the radial end positions and depressions lying radially on the inside. As a result, elements of the or each ductile component can be exposed through the impact disks and then completely removed while avoiding the impact disks through the or each cutting base without significant risk of damage to the or each cutting base.

Further expedient embodiments of the invention are the subject of the dependent claims.

Further expedient refinements and advantages of the invention will become apparent from the following description of exemplary embodiments with reference to the figures of the drawing.

Fig. 1

in einer perspektivischen Ansicht ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung mit Blick auf eine Außenplatte,

Fig. 2

in einer perspektivischen Ansicht das Ausführungsbeispiel gemäß Fig. 1 mit Blick auf die der Außenplatte abgewandte Seite,

Fig. 3

in einer Schnittansicht das Ausführungsbeispiel gemäß Fig. 1 und Fig. 2,

Fig. 3a

in einer perspektivischen Ansicht ein Detail des Ausführungsbeispiels gemäß Fig. 2 und Fig. 3,

Fig. 4

in einer perspektivischen Ansicht eine Ausführung eines Schneidsockels mit einem Abstreifmodul für eine erfindungsgemäße Vorrichtung,

Fig. 4a

in einer perspektivischen Ansicht eine weitere Ausführung eines Schneidsockels mit einem Abstreifmodul für eine erfindungsgemäße Vorrichtung,

Fig. 4b

in einer Seitenansicht die weitere Ausführung eines Schneidsockels gemäß Fig. 4a,

Fig. 5

in einer perspektivischen Ansicht eine weitere Ausführung eines Schneidsockels mit einem Abstreifmodul für eine erfindungsgemäße Vorrichtung,

Fig. 6

in einer perspektivischen Ansicht eine weitere Ausführung eines Schneidsockels mit einem Abstreifmodul für eine erfindungsgemäße Vorrichtung,

Fig. 7

in einer perspektivischen Ansicht eine weitere Ausführung eines Schneidsockels mit einem Abstreifmodul für eine erfindungsgemäße Vorrichtung,

Fig. 8

in einer schematischen Seitenansicht eine Abtragseinheit des Ausführungsbeispiels gemäß Fig. 1 bis Fig. 3 in einer Betriebsstellung beim Abtragen einer spröden Komponente eines Bauwerkstoffs,

Fig. 9

in einer schematischen Seitenansicht entsprechend Fig. 8 die Abtragseinheit in einer weiteren, nicht abtragenden Betriebsstellung,

Fig. 10

in einer schematischen Seitenansicht entsprechend Fig. 8 und Fig. 9 die Abtragseinheit in einer weiteren Betriebsstellung beim Abtragen einer spröden Komponente und beim Vorbereiten des Abtrags einer duktilen Komponente des Bauwerkstoffs,

Fig. 11

in einer schematischen Seitenansicht entsprechend Fig. 8 bis Fig. 10 die Abtragseinheit in einer weiteren Betriebsstellung beim Abtragen einer duktilen Komponente des Bauwerkstoffs,

Fig. 12

in einer schematischen Seitenansicht entsprechend Fig. 8 bis Fig. 11 die Abtragseinheit in einer weiteren Betriebsstellung beim erneuten Abtragen einer spröden Komponente und nach dem Abtragen einer duktilen Komponente des Bauwerkstoffs,

Fig. 13

in einer schematischen perspektivischen Ansicht das Ausführungsbeispiel gemäß Fig. 1 bis Fig. 3 nach einem bahnartigen Abtragen eines Volumens eines Bauwerkstoffs mit einer spröden Komponente und mit einer duktilen Komponente,

Fig. 14

in einer perspektivischen Ansicht ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung,

Fig. 15

in einer perspektivischen Ansicht ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung,

Fig. 16

in einer Schnittansicht das Ausführungsbeispiel gemäß Fig. 15,

Fig. 17

in einer schematischen Ansicht das Ausführungsbeispiel gemäß Fig. 15 sowie Fig. 16 nach Abtragen eines bahnartigen Volumens eines Bauwerkstoffs mit einer spröden Komponente und mit einer duktilen Komponente,

Fig. 18

in einer perspektivischen Ansicht ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung mit Blick auf eine Außenplatte,

Fig. 19

in einer perspektivischen Ansicht eine weitere Ausführung einer Abtragseinheit für eine erfindungsgemäße Vorrichtung,

Fig. 20

in einer perspektivischen Ansicht noch eine weitere Ausführung einer Abtragseinheit für eine erfindungsgemäße Vorrichtung,

Fig. 21

in einer perspektivischen Ansicht noch eine weitere Ausführung einer Abtragseinheit für eine erfindungsgemäße Vorrichtung in einer ersten Betriebsstellung,

Fig. 22

in einer perspektivischen Ansicht die weitere Ausführung einer Abtragseinheit für eine erfindungsgemäße Vorrichtung gemäß Fig. 21 in einer zweiten Betriebsstellung,

Fig. 23

in einer Seitenansicht noch eine weitere Ausführung einer Abtragseinheit für eine erfindungsgemäße Vorrichtung in einer ersten Betriebsstellung und

Fig. 24

in einer Seitenansicht die weitere Ausführung einer Abtragseinheit für eine erfindungsgemäße Vorrichtung gemäß Fig. 23 in einer zweiten Betriebsstellung.

Show it:

Fig. 1

in a perspective view of an embodiment of a device according to the invention with an eye to an outer panel,

Fig. 2

in a perspective view of the embodiment according to Fig. 1 facing the side facing away from the outer panel,

Fig. 3

in a sectional view of the embodiment according to Fig. 1 and Fig. 2 .

Fig. 3a

in a perspective view of a detail of the embodiment according to Fig. 2 and Fig. 3 .

Fig. 4

in a perspective view of an embodiment of a cutting base with a stripping module for a device according to the invention,

Fig. 4a

in a perspective view of another embodiment of a cutting base with a stripping module for a device according to the invention,

Fig. 4b

in a side view of the further execution of a cutting socket according to Fig. 4a .

Fig. 5

in a perspective view of another embodiment of a cutting base with a stripping module for a device according to the invention,

Fig. 6

in a perspective view of another embodiment of a cutting base with a stripping module for a device according to the invention,

Fig. 7

in a perspective view of another embodiment of a cutting base with a stripping module for a device according to the invention,

Fig. 8

in a schematic side view of a removal unit of the embodiment according to Fig. 1 to Fig. 3 in an operating position when removing a brittle component of a building material,

Fig. 9

in a schematic side view accordingly Fig. 8 the removal unit in a further, non-erosion operating position,

Fig. 10

in a schematic side view accordingly Fig. 8 and Fig. 9 the removal unit in a further operating position during the removal of a brittle component and during the preparation of the removal of a ductile component of the construction material,

Fig. 11

in a schematic side view accordingly Fig. 8 to Fig. 10 the removal unit in a further operating position during the removal of a ductile component of the construction material,

Fig. 12

in a schematic side view accordingly Fig. 8 to Fig. 11 the removal unit in a further operating position during the renewed removal of a brittle component and after the removal of a ductile component of the construction material,

Fig. 13

in a schematic perspective view of the embodiment according to Fig. 1 to Fig. 3 to a web-like removal of a volume of a building material with a brittle component and with a ductile component,

Fig. 14

in a perspective view of a further embodiment of a device according to the invention,

Fig. 15

in a perspective view of a further embodiment of a device according to the invention,

Fig. 16

in a sectional view of the embodiment according to Fig. 15 .

Fig. 17

in a schematic view of the embodiment according to Fig. 15 such as Fig. 16 after removal of a web-like volume of a building material with a brittle component and with a ductile component,

Fig. 18

in a perspective view of another embodiment of a device according to the invention with a view of an outer panel,

Fig. 19

in a perspective view of another embodiment of a removal unit for a device according to the invention,

Fig. 20

in a perspective view yet another embodiment of a removal unit for a device according to the invention,

Fig. 21

in a perspective view yet another embodiment of a removal unit for a device according to the invention in a first operating position,

Fig. 22

in a perspective view of the further embodiment of a removal unit for a device according to the invention according to Fig. 21 in a second operating position,

Fig. 23

in a side view yet another embodiment of a removal unit for a device according to the invention in a first operating position and

Fig. 24

in a side view, the further embodiment of a removal unit for a device according to the invention Fig. 23 in a second operating position.

Fig. 1 shows a perspective view of an embodiment of a device according to the invention. The embodiment according to Fig. 1 has a substantially cuboidal outer plate 1, which in the illustration according to Fig. 1 facing the viewer. On the in the illustration according to Fig. 1 The viewer facing away from the outer panel 1 is also a substantially cuboidal inner plate 2 is present, which is connected to the outer panel 1. In rounded Fußbereichen the outer plate 1 and the inner plate 2 web-like roller bearing base 3 are mounted, which protrude beyond the outer plate 1 and the inner plate 2 and cylindrical guide rollers 4 rotatably support.

In the outer plate 1 and in the inner plate 2, a drive shaft 5 and in the foot region an output shaft 6 are rotatably mounted in a head region opposite the guide rollers 4. The drive shaft 5 and the output shaft 6 are shown in FIG Fig. 1 invisible, arranged in the outer plate 1 transmission unit connected to each other such that a rotational movement of the drive shaft 5 transmits to the output shaft 6. The drive shaft 5 is in communication with a drive motor 7 which can be fed, for example, with electrical energy, with which the drive shaft 5 can be driven to rotate, while the output shaft 6 is coupled to a removal unit 8.

The substantially cylindrical trained Abtragseinheit 8 has for removing at least one brittle component of a material on groups of impact disks 9 as Abtragswerkzeuge, which are arranged at a radial distance from the center of the central axis of the output shaft 6 coinciding center longitudinal axis of the Abtragseinheit 8. Groups of impact disks 9 are arranged in the circumferential direction at an angular distance from one another.

Between circumferentially adjacent groups of impact disks 9 for removing at least one ductile component of a material in each case one in a proper direction and thus unilaterally acting cutting base 10 of the Abtragseinheit 8 is present, which is fixedly disposed and viewed in the circumferential direction on one side over a number of the has cutting removal of at least one ductile component of a construction material equipped cutting plates 11 as further Abtragswerkzeuge has. In the intended direction of rotation of the removal unit 8, each cutting base 10 is preceded by a stripping module 12, with which the material or each brittle component removed by the impact disks 9 can be largely removed prior to the action of a cutting socket 10 on a ductile component.

Furthermore, the illustration according to Fig. 1 see that between the drive motor 7 and the Abtragseinheit 8, a protective cover 13 is present, which is releasably connected to the inner plate 2, for example by screws.

Fig. 2 shows in a perspective view of the embodiment according to Fig. 1 with a view of the outer panel 1 side facing away. Out Fig. 2 It can be seen that in this embodiment in the circumferential direction in two axial sections 14a, 14b to achieve a relatively smooth concentricity in a removal four groups of radially outwardly with projections and with radially inwardly lying recesses formed impact discs 9 and four four-sided acting cutting base 10 are present , wherein between two circumferentially directly adjacent groups of impact discs 9 each have a cutting base 10 is arranged. In the two axial sections 14a, 14b, the alternating arrangements of groups of impact disks 9 and cutting base 10 are offset by 45 degrees so that in the axial direction a group of impact disks 9 of the one axial portion 14a, 14b adjacent to a cutting base 10 of the other axial portion 14b, 14a or a cutting base 10 of the one axial portion 14a, 14b of a group of impact disks 9 of the other axial portion 14b, 14a is arranged adjacent. This results in the removal of a material a relatively homogeneous load distribution in the axial direction.

Furthermore, the illustration according to Fig. 2 can be seen that the groups of impact discs 9 are rotatably mounted on a respective disc bearing axis 15. The disc bearing axles 15 of the groups of impact discs 9 in the inner plate 2 remote axial portion 14b are mounted with their the inner plate 2 opposite ends in Achsenträgerstücken 16, while the inner plate 2 facing ends of these disc bearing axles 15 are held in the cutting sockets 10 of the inner plate 2 adjacent axial portion 14a. The inner plate 2 facing away from the ends of the disc bearing shafts 15 of the inner plate 2 adjacent axial portion 14a are stored in the cutting bases 10 of the inner plate 2 remote axial portion 14b, while the inner plate 2 facing ends of these disc bearing axles 15 in one of the inner plate 2 directly opposite disc-like Bearing plate 17 are held. On the bearing plate 17 and the cutting base 10 of the inner plate 2 adjacent axial portion 14 a are attached.

Fig. 3 shows the embodiment according to Fig. 1 and Fig. 2 in a sectional view in the plane in which the center axes of the drive shaft 5 and the output shaft 6 lie. Out Fig. 3 It can be seen that in this embodiment, the transmission unit is designed by a link chain 18, which is arranged with in the outer plate 1 and connected to the drive shaft 5 and the output shaft 6 pinions 19, 20 is engaged.

Furthermore, the illustration according to Fig. 3 It can be seen that the impact discs 9 are mounted with play in the radial direction of the respective disc bearing axles 15, which is caused by a larger diameter of a center recess of the impact discs 9 relative to the diameter of the disc bearing axes 15.

Between adjacent impact discs 9 15 intermediate rings 21 are arranged around the respective disc bearing axis, which limit a movement of the impact discs 9 in the axial direction to a minimum, which still allows a movement of the impact discs 9 in the radial direction reliable.

Fig. 3a shows in a perspective view a detail of the removal unit 8 according to Fig. 1 to Fig. 3 in the region of a group of impact disks 9, which are arranged at a free end of a disk bearing axle 15. In Fig. 3a is the disc bearing axis 15 with respect to the arrangement according to Fig. 2 and Fig. 3 in the axial direction of the in Fig. 3a not shown inner plate 2 shown above, so that it can be seen that these disc bearing axles 15 at one end free ends have an end plate 15a whose outer diameter greater than the inner diameter of the held at the free end and flush termination with a receiving recess 9a for the end plate 15a formed impact disks 9 is. Furthermore, the illustration according to Fig. 3a can be seen that in the groups of arranged at the free end of disc bearing axles 15 impact discs 9 between the impact discs 9 no intermediate rings 21 are arranged. This results in the outer edge region of the Abtragseinheit 8 eliminating a caused by the edge arranged axis support pieces 16 certain death effect a still relatively high Abtragsrate.

Fig. 4 shows in a perspective view of an embodiment of a one-sided cutting base 10 with a stripping module 12 for a device according to the invention such as for the basis Fig. 1 to Fig. 3 explained embodiment. The cutting base 10 according to Fig. 4 has a wedge-shaped, in a radial direction and in an axial direction extending solid base body 22. The in the illustration according to Fig. 4 facing away from the viewer and when used with the embodiment according to Fig. 1 to Fig. 3 the output shaft 6 facing inside 23 of the base body 22 is dimensioned smaller in the circumferential direction than that in the illustration Fig. 4 facing the viewer and in use with the embodiment according to Fig. 1 to Fig. 3 the output shaft 6 facing away from the outside 24th

The outer side 24 of the base body 22 has a radially oriented and axially extending rear abutment step 25a, which divides the outer side 24 in a raised portion and in a recessed area and to which a number of in accordance with the execution Fig. 4 cuboidal cutting plates 11 are detachably mounted with a square base over one fastening screw 26. Advantageously, each mounted on the rear abutment step 25a cutting plate 11 is arranged in a formed in the rear abutment step 25a in the circumferential direction receiving pocket 27 which secures the arranged in a receiving pocket 27 inserts 11 in addition to the mounting screw 26 backlash against displacement in the axial direction.

Out Fig. 4 It can be seen that the attached to the rear abutment step 25 a cutting plates 11 radially outwardly and facing away from the rear abutment step 25 a each have a cutting edge 28, which arranged to form a rear effective edge for a chip removal at an equal distance from the central longitudinal axis of the Abtragseinheit 8 and in this embodiment also aligned in the axial direction with each other. The cutting edges 28 are in the axial direction at least in the plane of the raised portion of the outer side 24, but expediently slightly over the raised portion of the outer side 24 protruding. As a result, upon rotation of a removal unit 8 for carrying out a removal of construction material, a simultaneous engagement of all cutting edges 28 of the cutting plates 11 attached to the rear abutment step 25a results along the rear-side effective edge.

In the cuboidal design of the cutting plates 11 according to Fig. 4 can be used relatively long after insertion of the respective fastening screw 26 by displacement in a total of eight different positions with front arranging each of a new, not yet worn cutting edge 28 until a final wear.

Furthermore, in Fig. 4 a stripping module 12 is shown, which has a module body 29, which is arranged opposite to the cutting edges 28 of the cutting plates 11 at a distance from the rear abutment step 25a. The module body 29 is mounted on the base body 22 and extends in the axial direction over the entire width of the base body 22. The module body 29 carries in the radial direction over the outside 24 of the base body 22 at least to the plane of the cutting edges 28, but preferably beyond protruding, relatively rigid brush elements 30 of, for example, an elastic metal wire. The brush elements 30 are in the embodiment according to Fig. 4 arranged in a number of rows extending in the axial direction and circumferentially offset from each other, so that when looking in the circumferential direction on the brush elements 30 results in a substantially closed surface. Between the rear abutment step 25a and the brush elements 30, a receiving volume is thus created in the recessed area of the outer side 24 of the base body 22.

Fig. 4a shows in a perspective view of another embodiment of a designated direction of rotation and thus acting unilaterally cutting base 10 with a stripping module 12 for a device according to the invention. The cutting base 10 according to Fig. 4a has in addition to a rear abutment step 25a according to the embodiment according to Fig. 4 via a front abutment step 25b, which is disposed between the stripping module 12 and the rear abutment step 25a.

The front abutment step 25b, like the rear abutment step 25a, is radially aligned and straight in the axial direction so that the outer side 24 is divided into two raised areas and two recessed areas. At the front abutment step 25b, as in the rear abutment step 25a, a number of the embodiment shown in FIG Fig. 4a cuboidal cutting plates 11 with a square base over one mounting screw 26 releasably attached. Advantageously, each mounted on the front abutment step 25b cutting plate 11 is arranged in a formed in the front abutment step 25b in the circumferential direction receiving pocket 27 which secures the arranged in a receiving pocket 27 inserts 11 in addition to the mounting screw 26 backlash against displacement in the axial direction.

Out Fig. 4a It can be seen that the mounted on the front abutment step 25 b cutting plates 11 radially outwardly and facing away from the front abutment step 25 b each have a cutting edge 28, which arranged to form a front-side effective edge for a chipping at an equal distance from the central longitudinal axis of the Abtragseinheit 8 and in this embodiment also aligned in the axial direction with each other. The cutting edges 28 are in the axial direction at least in the plane of the adjacent to the front abutment step 25b raised portion of the outer side 24, but expediently somewhat over this raised portion of the outside 24 protruding. This results when turning a removal unit 8 for performing a removal of construction material a simultaneous engagement of all cutting edges 28 along the front-side effective edge.

Furthermore, the cutting base 10 in the embodiment according to Fig. 4a equipped with a stripping module 12, which according to the stripping module 12 of the embodiment according to Fig. 4 trained and to avoid repetition is not further explained below.

Fig. 4b shows in a side view the further embodiment of a cutting base 10 according to Fig. 4a , From the illustration according to Fig. 4b It can be seen that the cutting edges 28 of the cutting plates 11 attached to the rear abutment step 25a are arranged radially opposite the cutting edges 28 of the cutting plates 11 mounted on the front abutment step 25b at a greater distance from the inner side 23 of the base body 22. As a result, the front-side effective edge and the rear effective edge are arranged in the radial direction at different heights, so that when turning the Abtragseinheit 8 in the intended direction of rotation first along the front-side effective edge and then along the radially over the front-side effective edge protruding rear Wirckante a tool-saving and Efficient two-stage machining removal of a ductile component of a building material takes place.

Fig. 5 shows in a perspective view of another embodiment of a one-sided cutting base 10 with a stripping module 12 for a device according to the invention, wherein in the embodiment according to Fig. 4 and in the execution according to Fig. 5 Corresponding elements provided with the same reference numerals and are not further explained below. In the execution according to Fig. 5 is different from the version according to Fig. 4 the back abutment step 25a in the axial direction staircase formed with in the transition region of a cutting plate 11 to an adjacent cutting plates 11 rounded transitions, so that the cutting plates 11 are arranged in the circumferential direction expediently offset by a respective same distance from each other. This results in turning a Abtragseinheit 8 for performing a removal of material a time-staggered engagement of the cutting edges 28 of the cutting plates 11 due to their same distance from the central longitudinal axis of the Abtragseinheit 8 along an active edge with at least one ductile component of the material.

Fig. 6 shows in a perspective view of another embodiment of a one-sided cutting base 10 with a stripping module 12 for a device according to the invention, wherein in the embodiments according to Fig. 4 such as Fig. 5 and in the execution according to Fig. 6 Corresponding elements provided with the same reference numerals and are not further explained below. In the execution according to Fig. 6 is different from the comments according to Fig. 4 and Fig. 5 the rear abutment step 25a in the axial direction V-like formed with in the transition region of a cutting plate 11 to an adjacent cutting plate 11 rounded transitions, so that the cutting plates 11 are arranged offset in the circumferential direction expediently by a respective same distance from each other. In this case, pairs of cutting plates 11 may be arranged in the circumferential direction opposite each other with paired aligned cutting edges 28. As a result, upon rotation of a removal unit 8 for carrying out a removal of construction material, a time-shifted engagement of individual or pairs of cutting edges 28 results due to their equal distance from the central longitudinal axis of the removal unit 8 along an active edge.

Fig. 7 shows in a perspective view of another embodiment of a one-sided cutting base 10 with a stripping module 12 for a device according to the invention, wherein in the embodiments according to Fig. 4 to Fig. 6 and in the execution according to Fig. 7 Corresponding elements provided with the same reference numerals and are not further explained below. In the execution according to Fig. 7 are in staircase forming the rear abutment step 25a according to the embodiment according to Fig. 5 Deviating from the statements according to Fig. 4 to Fig. 6 the cylinder-like cutting plates 11 are formed with a circular base surface, wherein a portion of the cutting plates 11 projects in the radial direction over the raised portion of the outer side 24 of the base body 22. The execution according to Fig. 7 with cylinder-shaped cutting plates 11 is characterized in that after wear over the raised portion of the outside 24 of the base body 22 protruding portions of the cutting edges 28, the mounting screws 26 need only be loosened slightly to by turning the cylinder-like cutting plates 11 by a corresponding angle To arrange a still wear-free portion of the respective cutting edge 28 on the raised portion of the outer side 24 of the base body 22 projecting. A complete unscrewing the mounting screw 26 is therefore required only once for a wear of the cutting plates 11 to a complete wear.

Fig. 8 shows a schematic side view of a removal unit 8 of the embodiment according to Fig. 1 to Fig. 3 with an in a proper direction of rotation and thus unilaterally acting cutting base 10 having circumferentially offset cutting inserts 11, in an operating position when removing a brittle component 31 such as concrete of a material 32, which is formed by reinforced concrete and ductile Component 33 has reinforcing steel elements. In the removal of the material 32, the output shaft 6 rotates in a single, namely the intended direction of rotation, so that thereby the Abtragseinheit 8 in the illustration according to Fig. 4 is rotated in the counterclockwise direction, while the removal unit 8 translationally in the direction of rotation, as shown in FIG Fig. 8 indicated by a straight arrow from left to right, is moved.

When the removal unit 8 is rotated, the impact disks 9, which are not in contact with the construction material 32, are arranged maximally radially outwards due to the centrifugal force and abut against the respective disk bearing axles 15 in their areas of the center recess facing the output shaft 6. Upon impact of a beating disk 9 on the building material 32, this differs radially inwardly due to the bearing in the radial direction bearing, but the brittle component 31 is removed by knocking out material in a Abtragsbereich by the case transferred to the material 31, until the in contact with the brittle component 31 located impact discs 9 as the free impact discs 9 are arranged maximally radially outward.

In the illustration according to Fig. 8 For example, the impact disk 9 closest to the construction material 32 is shown in an underlying removal region as already penetrated so far into the brittle component 31 that no further removal of brittle component 31 takes place.

Fig. 9 shows in a schematic side view accordingly Fig. 8 the removal unit 8 in a further, non-abrasive operating position, in which the construction material 32 next adjacent impact disk 9 with a ductile component 33 in contact. Because the ductile component 33 is not or not significantly removed due to their impact strength by the momentum transfer of the impact disks 9, but is usually only plastically deformed soft, the coming into contact with the ductile component 33 impact discs 9 radially inward maximum up to the stop on the respective disc bearing axis 15 off.

Fig. 10 shows in a schematic side view accordingly Fig. 8 and Fig. 9 the removal unit 8 in a further operating position during renewed removal of the brittle component 31 and during preparation of the removal of the ductile component 33 of the building material 32. From the illustration according to FIG Fig. 10 It can be seen that, after passing over the ductile component 33 through the impact disks 9, first the stripping modules 12 and then the cutting plates 11 of the cutting pedestals 10 come into engagement with the ductile component 33. In the in Fig. 10 illustrated operating position, the contact of the brush elements 30 of a stripping module 12 is shown with the ductile component 33, whereby the ductile component 33 is freed of abraded by the impact discs 9 material of brittle component 31.

Fig. 11 shows in a schematic side view accordingly Fig. 8 to Fig. 10 the removal unit 8 in a further operating position when removing the ductile component 33 of the material 32, in which now the cutting plates 11 of a cutting base 10 with the ductile component 33 are engaged and by the action of the cutting edges 28 on the ductile component 33 along the active edge cutting Remove material of the ductile component 33 in a Abtragsbereich.

Fig. 12 shows in a schematic side view accordingly Fig. 8 to Fig. 11 the removal unit 8 in a further operating position when renewed removal of the brittle component 31 accordingly the operating position according to Fig. 8 and after the removal of the ductile component 33 of the building material 32 in the in the operating position according to Fig. 11 machined Abtragsbereich, whereby a new Abtragszyklus with removal of initially brittle component 31 and then ductile component 33 of the building material 32 begins.

From the explanations related to FIG. 8 to FIG. 12 shows that in order to achieve defined excavation depths and a very efficient interaction of the impact discs 9 and the or each cutting base 10 advantageously formed by the cutting edges 28 effective edges of each cutting base 10 between the radial end positions of the impact discs 9 are arranged. As a result, after removal of brittle component 31 by the impact disks 9, the ductile component 33 of the construction material 32 is exposed while avoiding the impact disks 9, and the exposed ductile component 33 subsequently with deflection of the impact disks 9 radially inwardly through the cutting base 10 remove.

Fig. 13 shows in a schematic perspective view of the embodiment according to Fig. 1 to Fig. 3 after a sheet-like removal of a volume of a building material 32 in the form of a piece of reinforced concrete block having a ductile component 33 in the form of a number of reinforcing steel elements and a brittle component 31 in the form of concrete, in which the reinforcing steel elements are embedded three-dimensionally. Out Fig. 13 It can be seen that with the embodiment according to Fig. 1 to Fig. 3 by alternating web-like reciprocation under rest of the guide rollers 4 on the material 32 with a pivoting of the Abtragseinheit 8 at the end of a Abtragsbahn 180 degrees groove-like depressions in the material 32 can be introduced.

It is expedient that the cutting plates 11 are displaced in the axial direction of the Abtragseinheit 8 of successively in the circumferential direction following cutting base 10 so that even in a single run over a gap in the axial direction of the Abtragseinheit 8 results Abtragsbereich.

Fig. 14 shows in a perspective view of another embodiment of a device according to the invention, wherein in the reference Fig. 1 to Fig. 3 explained embodiment and in the embodiment according to Fig. 14 Corresponding elements provided with the same reference numerals and will be explained in more detail below in part. The embodiment according to Fig. 14 consists essentially of two embodiments according to Fig. 1 to Fig. 3 , which are connected to each other with their outer plates 1 at the Abtragseinheit 8 facing away from each other. This results in a relatively wide Abtragsbereich, the lying between the Abtragseinheiten 8 area separately, for example, by offsetting the embodiment according to Fig. 14 in the axial direction of the Abtragseinheiten 8 is to be removed. This advantageously results in a removal of building material in relatively wide and not too deep Abtragsbahnen.

Fig. 15 shows in a perspective view of another embodiment of a device according to the invention, wherein in the reference Fig. 1 to Fig. 3 such as Fig. 14 explained embodiments and in the embodiment according to Fig. 15 Corresponding elements provided with the same reference numerals and will be explained in more detail below in part. In the embodiment according to Fig. 15 For example, the removal unit 8 has a fork-like support structure with an inner axial section 34a and two outer axial sections 34b, 34c that are circumferentially similar to an alternating sequence of two each arranged groups of impact discs 9 and arranged between two adjacent arranged groups of impact discs 9 cutting base 10 are formed. The axial sections 34a, 34b, 34c are connected via two wedge-shaped connecting plates 35a, 35b to a carrier plate 36, to which the drive motor 7 is attached via a coupling flange 37.

Similar to the embodiment according to Fig. 1 to Fig. 3 is between the drive motor 7 and the Abtragseinheit 8 for each axial portion 34a, 34b, 34c each have a protective cover 13a, 13b, 13c arranged.

Fig. 16 shows in a sectional view of the embodiment according to Fig. 15 , Out Fig. 16 It can be seen that the groups of impact disks 9 and the cutting bases 10 of an axial section 34a, 34b, 34c are respectively attached to a hollow chamber rim 38a, 38b, 38c which is respectively non-rotatably coupled to the output shaft 6 cooperating with the removal unit 8. The output shaft 6 is rotatably mounted in the connecting plates 34a, 34b and coupled via a transmission wheel 39 as a transmission unit and via a drive wheel 40 to the drive shaft 5 connected to the drive motor 7.

Fig. 17 shows in a schematic perspective view the basis Fig. 15 and Fig. 16 illustrated embodiment after a web-like removal of a volume of a material 32 in the form of a fragmentary reinforced concrete block having a ductile component 33 in the form of a number of reinforcing steel elements and a brittle component 31 in the form of concrete, in which the reinforcing steel elements are embedded three-dimensionally. In the embodiment according to Fig. 15 and Fig. 16 let the recessed erosion path through Back and forth with a relatively slow to go through way and a relatively fast to traverse return path with an offset of the Abtragseinheit 8 in the axial direction for removing the two after the way between adjacent axial sections 34a, 34b, 34c still remaining raised areas produce. This advantageously results in a relatively fast removal of building material in relatively wide and already relatively deep Abtragsbahnen.

Fig. 18 shows in a perspective view of another embodiment of a device according to the invention, wherein in the reference Fig. 1 to Fig. 3 . Fig. 14 and Fig. 15 such as Fig. 16 explained embodiments and in the embodiment according to Fig. 18 Corresponding elements provided with the same reference numerals and will be explained in more detail below in part. The trained without Abstreifmodule 12 embodiment according to Fig. 18 has a single axial section 41, which carries on a hollow chamber rim 38 in the circumferential direction a sequence of a respective group of impact disks 9 and a cutting base 10. The hollow rim 38 is rotatably connected to the output shaft 6 and disposed between two connecting plates 35a, 35b, in which the output shaft 6 is rotatably mounted. The output shaft 6 in turn is via the drive motor 7 and a in Fig. 18 not shown transmission unit driven to rotate. By providing a single axial section 41, the embodiment is characterized according to Fig. 18 characterized in that even with a large diameter of the hollow rim 38 can be achieved with a single pass on a Abtragsbahn a depth which is slightly smaller than the radius of the Abtragseinheit 8.

Fig. 19 shows in a perspective view of another embodiment of a removal unit 8 for a device according to the invention, wherein in the further embodiment of a removal unit 8 according to Fig. 19 and the above-described removal units 8 corresponding elements provided with the same reference numerals and to avoid repetition in part are not explained again in detail. In the removal unit 8 in the embodiment according to Fig. 19 are different from the Abtragseinheit 8 according to Fig. 2 all cutting bases 10 are arranged in one axial section 14a and all groups of striking disks 9 are arranged in a further axial section 14b. This results in an efficient removal at an axial extent of the axial sections 14a, 14b corresponding displacement of the removal unit 8 according to Fig. 19 in the axial direction such that first the impact disks 9 and after displacement in the axial direction, the cutting plates 11 of the cutting base 10 with the material 32 come into engagement.

Fig. 20 shows in a perspective view of another embodiment of a removal unit 8 for a device according to the invention, wherein in the further embodiment of a removal unit 8 according to Fig. 20 and the above-described removal units 8 corresponding elements provided with the same reference numerals and to avoid repetition in part are not explained again in detail. The execution of the removal unit 8 according to Fig. 20 is distinguished from the execution of the removal unit 8 according to Fig. 19 characterized in that in the circumferential direction groups of impact discs 9 and cutting base 10 in a plurality of inside axial sections 14a1, 14a2, ..., 14aN "sorted", ie in an axial portion 14a1, 14a2, ..., 14aN either only groups of Impact disks 9 or only cutting base 10, but are arranged alternately in the axial direction, while in an outer side axial portion 14b in the circumferential direction alternately groups of impact disks 9 and cutting base 10 are available. This results in relation to the embodiment according to Fig. 19 at a multi-stage offset in the axial direction an efficient removal of material 32nd

Fig. 21 shows in a perspective view of another embodiment of a removal unit 8 for a device according to the invention, wherein in the further embodiment of a removal unit 8 according to Fig. 21 and the above-described removal units 8 corresponding elements provided with the same reference numerals and to avoid repetition in part are not explained again in detail. In the removal unit 8 in the embodiment according to Fig. 21 are the remote from the bearing plate 17 ends of the disk bearing axles 15 in an in the circumferential direction about the output shaft 6 rotatable adjusting plate 42, obliquely elongated Zwangsführungsausnehmungen 43 mounted. The inclination of the Zwangsführungsausnehmungen 43 is in the same sense in the sense that with respect to a indicated by an arrow first direction of rotation of the adjusting plate 42 rear ends of the Zwangsführungsausnehmungen 43 are relatively close to the edge of the adjusting plate 42, while the opposite ends of the rear, with respect in the first direction of rotation front ends of Zwangsführungsausnehmungen 43 are further away from the edge of the adjusting plate 42.

Furthermore, from the illustration according to Fig. 21 can be seen that in the Achsenträgerstücken 16, which are arranged in this embodiment on the bearing plate 17 side facing the outer side adjusting plate 42, extending in the radial direction Radialversatzausnehmungen 44 are formed. Accordingly, in the cutting bases 10 in the illustration according to Fig. 21 non-visible Radialversatzausnehmungen 44 available.

In the illustration according to Fig. 21 is the Abtragseinheit 8 in a first operating position, in which after rotation of the adjusting plate 42 in the first direction of rotation, the ends of the disc bearing axes 15 in the region of the rear in the direction of rotation of the adjusting plate 42, in the radial direction further outward ends of the Zwangsführungsausnehmungen 43 are arranged. In this first operating position, the impact disks 9 are in operation of the removal unit 8 as in the embodiment of the removal unit 8 according to Fig. 2 raised relative to the cutting edges 28 of the cutting plates 11 without the action of external forces in the radial direction.

Fig. 22 shows in a perspective view of the further embodiment of a removal unit 8 according to Fig. 21 in a second operating position, starting from the first operating position according to Fig. 21 characterized in that the adjusting plate 42 in the direction of in Fig. 21 indicated arrow has been rotated in one of the first rotational direction opposite second direction of rotation until the ends of the disc bearing axes 15 are arranged in the region of the radially inwardly located forward ends of the Zwangsführungsausnehmungen 43. In this second operating position, the impact disks 9 are opposite to the arrangement in the first operating position according to Fig. 21 lowered so far in the radial direction to the output shaft 6 that are lowered during operation of the Abtragseinheit 8 even without the action of external forces in the radial direction below the formed by the cutting edges 28 of the cutting plate 11 effective edge of the cutting base 10. In this second operating position thus come with a removal of material 32 only the cutting plates 11 of the cutting base 10 to the effect. As a result, for example, relatively large areas of the structural material 32 can be removed efficiently with only ductile component 33 while protecting the impact disks 9.

Fig. 23 shows a side view of a further embodiment of a removal unit 8 for a device according to the invention, wherein in the further embodiment of a removal unit 8 according to Fig. 23 and the above-described removal units 8 corresponding elements provided with the same reference numerals and to avoid repetition in part are not explained again in detail. The removal unit 8 in the embodiment according to Fig. 23 has two rotation directions and thus two-sided acting cutting base 10 ', which has two peripherally arranged peripherally groups of first cutting plates 11a and second cutting plates 11b, each having a cutting edge 28 has. Each group of first cutting plates 11a and second cutting plates 11b is preceded by a stripping module 12.

Each double-sided cutting base 10 'is tilted in the circumferential direction with its base body 22 via a tilting axis 45, which crosses the base body 22 in one of its outer side 24 opposite foot, and otherwise secured in the axial direction of the Abtragseinheit 8 substantially free of play. Each base body 22 of a double-sided cutting base 10 'is formed on the side facing away from its outer side 24 of the tilting axis 45 with a stop pin 46 which extends in the radial direction inwardly in the direction of the output shaft 6.

To the output shaft 6 rotatable adjusting sleeves 47 are arranged in the circumferential direction, which have a number of stop ribs 48. The abutment ribs 48 extend radially away from the output shaft 6 in a star shape, so that in each case a pin receiving space 49 is formed between pairs of stop ribs 48 adjacent in the circumferential direction. Each pin receiving space 49 receives a stopper pin 46 of a socket body 22 of a double-sided cutting socket 10 'and is in the circumferential direction larger than the relevant stop pin 46 dimensioned.

In the illustration according to Fig. 23 the adjusting sleeves 47 are rotated so that the clockwise front walls of the stop pins 46 abut the abutment against stop ribs 48 so that the cutting edges 28 of the clockwise rear first cutting plates 11a in the radial direction relative to the cutting edges 28 of the clockwise front second cutting plates 11b are raised. Thus, when the removal unit 8 is rotated counterclockwise, the radially forward clockwise raised cutting edges 28 of the first cutting plates 11a engage a structural material 32, while in this rotational direction the cutting edges 28 of the other group of clockwise second cutting inserts 11b are free of engagement ,

Fig. 24 shows in a side view the further embodiment of a removal unit 8 according to Fig. 23 in a second operating position, when compared to the first operating position according to Fig. 23 the adjusting sleeves 47 have been rotated clockwise so far that the rear-lying in the clockwise direction walls of the stop pins 46 abut the abutting stop ribs 48. Now, the cutting edges 28 of the clockwise front second cutting inserts 11b in the radial direction relative to the cutting edges 28 of the clockwise lying back first cutting inserts 11a are raised. Thus, when the removal unit 8 is rotated in a clockwise direction, the radially rearward raised cutting edges 28 of the second cutting inserts 11b engage a structural material 32, while in this direction of rotation the cutting edges 28 of the other group of clockwise backward first cutting inserts 11a are free of engagement.

The execution of a removal unit 8 for a device according to the invention Fig. 23 and Fig. 24 is thus characterized by the fact that it can be operated directly in two directions of rotation without alterations.

Claims (19)

1. Device for removing constructional material (32), having at least one removing unit (8) which is able to be rotated on a central longitudinal axis and which, to remove at least one brittle component (31) of a constructional material (32), has at least one group of impacting discs (9), the impacting discs (9) in the or each group being mounted, with clearance in the radial direction, on a disc-mounting shaft (15) and the or each disc-mounting shaft being arranged at a distance radially from the central longitudinal axis, characterised in that arranged adjacent to the, or at least one, group of impacting discs (9) in the circumferential direction and/or in the axial direction is at least one cutter base-block (10, 10') which, for the stock-removing removal of at least one ductile component (33) of a constructional material (32), has at least one cutting insert (11, 11a, 11b).
2. Device according to claim 1, characterised in that working edges of the or each cutter base-block (10, 10') are situated between radial end-positions of the impacting discs (9).
3. Device according to claim 1, characterised in that impacting discs (9) have elevations on the outside radially and depressions situated inwards radially, which determine the radial end-positions.
4. Device according to one of claims 1 to 3, characterised in that present between two axially adjacent impacting discs (9) is an intermediate ring (21) which is arranged around the disc-mounting shaft (15) concerned.
5. Device according to one of claims 1 to 4, characterised in that each cutter base-block (10, 10') has a plurality of cutting inserts (11, 11a, 11b).
6. Device according to claim 5, characterised in that, to form one working edge, cutting edges (28) of cutting inserts (11, 11a, 11b) are arranged at the same distance from the central longitudinal axis.
7. Device according to claim 5, characterised in that, to form at least two working edges, cutting edges (28) of a plurality of groups of cutting inserts (11, 11a, 11b) are arranged at different distances from the central longitudinal axis in the radial direction.
8. Device according to one of claims 5 to 7, characterised in that the cutting inserts (11, 11a, 11b) are detachably mounted on their respective cutter base-blocks (10, 10').
9. Device according to one of claims 5 to 8, characterised in that the cutting inserts (11, 11a, 11b) are arranged in receiving pockets (27) with no play in the axial direction.
10. Device according to one of claims 5 to 9, characterised in that cutting inserts (11, 11a, 11b) which are adjacent in the axial direction are arranged to be staggered in the circumferential direction.
11. Device according to one of claims 5 to 10, characterised in that a plurality of cutter base-blocks (10, 10') are present and in that the cutting inserts (11, 11a, 11b) of all the cutter base-blocks (10, 10') cover an uninterrupted region of removal in the axial direction.
12. Device according to one of claims 1 to 11, characterised in that mounted in front of the or each cutter base-block (10, 10') is a wipe-away module (12) for removing loose material.
13. Device according to one of claims 1 to 12, characterised in that a plurality of groups of impacting discs (9) and a plurality of cutter base-blocks (10, 10') are present in the circumferential direction.
14. Device according to claim 13, characterised in that, in an axial portion (14a, 14b), cutter base-blocks (10, 10') and groups of impacting discs (9) are arranged to alternate.
15. Device according to claim 13, characterised in that in the circumferential direction only either cutter base-blocks (10, 10') or groups of impacting discs (9) are arranged in the circumferential direction in an axial portion (14a, 14a1, 14a2, 14aN) and, in one axial portion (14b) at an outer end, cutter base-blocks (10, 10') and groups of impacting discs (9) are arranged to alternate in the circumferential direction.
16. Device according to one of claims 1 to 15, characterised in that, in an operating position, the or each group of impacting discs (9) is able to be displaced in the radial direction in such a way that only the or each cutter base-block (10, 10') is active to remove a ductile component (33) of a constructional material (32).
17. Device according to one of claims 1 to 16, characterised in that the or each cutter base-block (10) has cutting inserts (11) which act in one sense in the circumferential direction.
18. Device according to one of claims 1 to 17, characterised in that the or each cutter base-block (10') has first cutting inserts (11a) and second cutting inserts (11b) which act in two senses in the circumferential direction.
19. Device according to claim 18, characterised in that the or each cutter base-block (10') can be tilted in the circumferential direction about a shaft (45) to two operating positions.

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