SCARIFICATION MACHINE

Description

Owner: GROTTI SRL, Via XXX aprile, 9 - 47025 Mercato Saraceno (FC), Italy. VAT number: 03769080403 Title: Scarifying machine. * * * * * 5 DESCRIPTION The present invention relates to a machine for scarification. The invention allows in particular to to carry out "special scarifications" in the sector of construction and infrastructure, as defined in 10 continuation. In particular, the invention is aimed to the removal of material such as for example concrete from curved surfaces, such as vaults of road tunnels. 15 STATE OF THE ART In the construction and infrastructures it is often necessary to carry out work of special scarification, intended as removal of 20 precision material. Scarification can have various motivations. For example, it is used for the restoration of artifacts where part of the concrete is removed or of the asphalt to replace it with new layers. the surface to be restored can be of any type, 25 for example the curved vault of a road tunnel, the kerb of a viaduct, a flat wall of a wall containment, etc. The precision scarification of the vaults of road tunnels are particularly problematic 5 for various reasons, including the curved shape, the fall of debris on the operating stain, the probability of excavate toxic materials, such as asbestos, etc. The applicant has developed a machine operator and related milling equipment 10 very versatile and capable of ensuring a high degree of precision in scarification, already the subject of various patent applications, such as the patent application Italian No. 102021000007049, and international applications n. PCT / IB2022 / 062198, PCT / IB2022 / 060185, 15 PCT / IB2022 / 062199. The general layout of such a machine including a carriage on which is mounted an articulated arm to which A burr is placed at the distal end. The advantage of this layout is the extreme stability 20 of the machine in the face of the enormous thrusts that it must to bear during milling. This allows for to build machines of great power and consequently of high productivity. On the other hand this layout is not able to 25 mill the entire arc at once with a single pass, but it needs repositioning. The purpose of the present invention is to provide a layout that allows milling the entire arch of a single vault with a single pass and maintaining high stability 5 of the machine. A further object of the present invention is to provide a highly productive machine. A further object of the present invention is to provide an easy and economical machine 10 realization. GENERAL INTRODUCTION Problems are solved by a machine 15 scarification according to the attached claims DETAILED DESCRIPTION 20 Additional Features and Benefits of the The present invention will be better understood from the following detailed description of its embodiments preferred, made with reference to the attached drawings and given for indicative and non-limiting purposes. In such cases 25 drawings: - figure 1 shows schematically, in view perspective, a scarifying machine according to the present invention; - figure 2 shows the machine of figure 1, in 5 front view; - figure 3 shows, in front view, a embodiment of the invention alternative to that of figures 1 and 2 10 With reference to figure 1, a scarifying machine according to the present invention indicated as a whole with the reference number 1. In the following we will conventionally indicate with 15 vertical and horizontal traditional directions compared to the ground. Machine 1 is overall a vehicle equipped with of a main body 12 and of an operating group cantilevered from the main body. 20 For example, said main body 12 comprises an undercarriage 5 movable with respect to the ground, for example tracked, on which is mounted rotating, around a vertical axis X, a carriage 10. The latter supports, and drags along with it, called operator group 15, in rotation. 25 Preferably the operating group 15 is projecting in radial direction with respect to the said X axis. Operator Group 15 includes: - an operator arm 30 with two ends 31 and 5 32 - at least one first 40 scarifier tool placed at one end of the operator arm 30 - a rotation joint 25 placed between the main body 12 and the operator arm 30, arranged 10 to define a rotation axis Z between the two, - counter-thrust means 50, placed at the end of the operating arm opposite to that of the first tool scarifier 40. Preferably, the operating group comprises a 15 spacer arm 20 with two ends, one joined to the main body 12 and one to the operator arm 30, where the rotation joint is at one end of the arm spacer and at an intermediate point between the two end of the operator arm. 20 The ends 31 and 32 of the operator arm 30 preferably they are diametrically opposed to each other to the Z-axis of the rotation joint 25. The operator arm 30 is capable of performing an operational rotation around a Z-axis of the joint 25 rotation at least greater than or equal to 100°, preferably greater than or equal to 150°, more preferably greater than or equal to 180° and even more preferably greater than or equal to 360°. Preferably both ends 31 and 32 of the 5 operator arms 30 are telescopic. Preferably said ends 31 and 32 are telescopically movable independently of each other, so as to adapt to tunnels with a non-circular section and / or at eccentric positions of the Z axis with respect to the vault 10 of the gallery. This means that at least the following are possible: following movements: - one end moves telescopically with respect to the operator arm 30 and the other remains stationary; 15 - the two ends move telescopically compared to the operator arm 30 with movements of entity which can be both the same and different from each other. In this case preferably machine 1 includes control means 33 of the ends 20 telescopic 31 and 32 configured to control them one independent of the other so as to maintain simultaneously both the scarifier tool 40 and the counterthrust means 50 in contact with the surface of the tunnel to be scarified. 25 The scarifier tool 40 preferably It includes a 42 cutter rotating around a Z' axis comprising at least one position parallel to the Z-axis, where preferably it also includes further positions inclined with respect to the Z axis. 5 Tool 40 is preferably attached to the first end of the operator shaft 30 rotatable around a Z-axis'' parallel to the Z-axis. The counter-thrust means 50 preferably include a sliding or rolling guide 52 10 of the end 32 configured to crawl or roll on a surface of a tunnel to be scarified while said gallery is scarified by said tool 40. Said guide 52 preferably includes a rotatable drum around a Z-axis parallel to the Z-axis. I 15 drum is preferably rotatable idle. Preferably its extension parallel to the axis of rotation Z''' is at least equal to that of the cutter. With reference to the Z-axis of the joint rotation 25, Preferably the counter-thrust means 50 20 are willing to act in a diametrically opposite way compared to tool 40. Preferably, the spacer arm 20 is joined to the main body 12 in a rotatable manner around to a Y-axis horizontal to the ground and orthogonal 25 to the Z axis, therefore orthogonal to the X axis that on the Z axis. With reference to figure 3, a scarifying machine 101 according to a form of alternative implementation of the invention, which differs 5 from the previous one due to the fact that the counter-thrust means 50 include a second 40' scarifier tool, with a 42' cutter rotatable around the Z''' axis. Preferably the 40 and 40' scarifier tools opposite ends of the operator shaft 30 are equal. GENERAL INTERPRETATION OF TERMS In understanding the purpose of this invention, the term "comprising" and its derivatives, 15 as used herein, are intended to be terminologically terminated open that specify the presence of the characteristics declared, elements, components, groups, integers and / or phases, but do not exclude the presence of others characteristics, elements, components, groups, numbers 20 undeclared wholes and / or phases. The above applies even to words that have similar meanings such as terms "including", "having" and their derivatives. Furthermore, the terms "part", "section", "portion", "member" or "element" when used in the singular can have the 25 double meaning of a single part or a plurality of parts. As used here to describe the form / forms of implementation above, the following terms directional "forward", "backward", "up", "down", "vertical", "horizontal", "under" and "transverse", 5 as well as any other similar directional term refers to the form of implementation described in position operational. Finally, terms of degree such as "substantially", "about" and "approximately" as used here mean a reasonable amount of 10 deviation of the term modified so that the the final result has not changed significantly. While only forms of were chosen selected achievements to illustrate this 15 invention, it will be clear to those skilled in the art from this description that various modifications and variations can be made without departing from the scope of the invention as defined in the appended claims. For example, the size, shape, position, or orientation 20 of the various components can be modified according to needs and / or desires. The components shown directly connected or in contact with each other can have intermediate structures arranged between them. functions of one element can be performed by two and 25 vice versa. The structures and functions of a form of realization can be adopted in another form of realization. It is not necessary that all the advantages are present in a particular embodiment at the same time. Every feature that is original 5 compared to the prior art, alone or in combination with other features, it should also be considered a separate description of further inventions by the applicant, including concepts structural and / or functional incorporated by such 10 characteristics. Therefore, the previous descriptions of the embodiments according to this invention are provided for illustrative purposes only and not for the purpose of limiting the invention as defined by the attached claims and their equivalents.

Claims

CLAIMS 1. Scarifying machine comprising a main body (12) movable with respect to the ground and an operating unit (15) supported cantilevered from the main body; the operating unit (15) comprises: - an operating arm (30) with two ends (31, 32); - at least one first scarifying tool (40) placed at one end of the operating arm (30); - a rotation joint (25) placed between the main body (12) and the operating arm (30), arranged to define a rotation axis Z between the two, - counter-thrust means (50), placed at the end of the operating arm opposite to that of the first scarifying tool (40).

2. Machine according to claim 1, characterised in that the operator group (15) comprises a spacer arm (20) with two ends, one joined to the main body (12) and one to the operator arm (30), where the rotation joint is at one end of the spacer arm (20) and at an intermediate point between the two ends (31, 32) of the operator arm (30). - 1 Eng. Andrea Busca isc. Albo n° 1095 B PR0782-IT 3. Machine according to claim 1 or 2, characterised in that the counter-thrust means (50) comprise a sliding or rolling guide (52) configured to slide or roll on a surface of a tunnel to be milled.

4. Machine according to claim 3, characterised in that said guide comprises at least one drum (52) rotatable around a Z''' axis parallel to the Z axis.

5. Machine according to claim 1 or 2 characterised in that the counter-thrust means (50) comprise a second scarifying tool (40') 6. Machine according to any of the preceding claims, characterised in that both ends (31, 32) of the operating arm (30) are telescopic.

7. Machine according to claim 6, characterised in that said ends 31 and 32 are - 2 Ing. Andrea Busca isc. Albo n° 1095 B PR0782-IT telescopically movable, one independently of the other.

8. Machine according to any of the preceding claims, characterised in that the ends (31, 32) of the operating arm (30) are diametrically opposed to the Z axis of the rotation joint (25).

9. Machine according to any of the preceding claims, characterised in that the operating arm (30) is capable of performing an operational rotation around the Z-axis of the rotation joint (25) at least greater than or equal to 100°, preferably greater than or equal to 150°, more preferably greater than or equal to 180° and even more preferably greater than or equal to 360°.

10. Machine according to any of the preceding claims, characterised in that the first scarifying tool (40) comprises a cutter (42) rotating around a Z' axis comprising at least one position parallel to the Z axis.

11. Machine according to claim 2 or a dependent claim thereof, characterised in that the spacer arm (20) - 3 PR0782-IT - can be rotated with respect to the ground Ing. Andrea Busca isc. Albo n° 1095 B is joined to the main body (12) around a horizontal Y axis and orthogonal to the Z axis.