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CN-122029326-A - Suction mechanism for milled material, roughening device and associated suction of milled material and corresponding method

CN122029326ACN 122029326 ACN122029326 ACN 122029326ACN-122029326-A

Abstract

The invention relates to a movable suction device for milling material, comprising at least one compartment (50), a suction loading mechanism (60) at an input end of the compartment, which suction loading mechanism is arranged to decompress the compartment (50) with respect to the external environment and is configured to load the milling material into the compartment by suction due to such decompression, a discharge mechanism (65) at an output end of the compartment (50), which discharge mechanism is configured to discharge the milling material from the compartment (50), characterized in that the suction device comprises a detection mechanism (58) configured to detect the presence of a milling material shielding layer (75) between the suction loading mechanism (60) and the discharge mechanism (65), and a control mechanism (55) operatively connected to the detection mechanism (58) to enable activation of the discharge mechanism (65) when the detection mechanism detects the presence of a milling material shielding layer (75) during operation of the suction loading mechanism (60).

Inventors

  • Zhan Piero Groti
  • Giuliano Groti

Assignees

  • 格罗蒂有限责任公司

Dates

Publication Date
20260512
Application Date
20241018
Priority Date
20231025

Claims (14)

  1. 1. A movable suction device for milling material, comprising: -at least one compartment (50); -a suction loading mechanism (60) at an input end of the compartment, arranged to decompress the compartment (50) with respect to the external environment, and configured to load the milling material into the compartment by suction due to such decompression; a discharge mechanism (65) at the output end of the compartment (50) configured to discharge the milling material from the compartment (50), Characterized in that the suction device comprises: -a detection mechanism (58) configured to detect the presence of a shield (75) of milled material interposed between the suction loading mechanism (60) and the discharge mechanism (65); -control means (55) operatively connected to said detection means (58) for enabling activation of said discharge means (65) when said detection means detects the presence of said milling material shielding layer (75) during operation of said suction loading means (60).
  2. 2. The device according to claim 1, wherein the discharge means (65) comprises at least one discharge opening (70), the suction loading means (60) comprises at least one suction inlet opening (62) arranged to introduce air and milling material into the compartment, and at least one suction outlet opening (63) arranged to remove air from the compartment to create the reduced pressure, Characterized in that the device comprises: -a dosing mechanism (58) configured to detect whether a predetermined amount Q of milled material is reached within the compartment, wherein the compartment is configured such that the predetermined amount Q is substantially accommodated therein to form a closed shielding layer (75) of the discharge opening (70), the closed shielding layer (75) being interposed between the discharge opening (70) on one side and the suction inlet opening (62) and suction outlet opening (63) on the other side; -a control mechanism (55) operatively connected to the dosing mechanism (58) configured to allow activation of the discharge mechanism (65) when the amount of milling material in the compartment is Q or more during operation of the suction loading mechanism (60).
  3. 3. The device according to claim 2, wherein the shielding layer (75) is arranged to provide a suction relief shielding layer sufficient to allow simultaneous operation of the suction loading mechanism and the discharge mechanism.
  4. 4. A device according to any one of claims 2 or 3, characterized in that the control means (55) is configured to control the activation of the discharge means (65) when the amount of milling material in the compartment is Q or more and to stop the discharge means when the amount is Q or less during operation of the suction means.
  5. 5. The apparatus according to claim 4, characterized in that the control mechanism (55) is configured to allow a delayed discharge with respect to the condition that the amount of milled material = Q is reached.
  6. 6. The device according to any one of claims 2 to 5, characterized in that the discharge means (65) comprise at least an opening and closing means (72) of the at least one discharge opening (70), the opening and closing means (72) comprising at least one airtight door controllable by the control means (55).
  7. 7. The device according to any one of claims 2 to 6, characterized in that the discharge means (65) comprises a protection means (74) for protecting the discharge opening (70), the protection means (74) being located within the compartment (50) to cover an area in front of the discharge opening (70) so as to define an access channel of the milling material to the discharge opening (70) defined above.
  8. 8. The device according to any one of claims 2 to 7, characterized in that the discharge means (65) comprise a conveying means (80) for conveying the milled material to the discharge opening (70), wherein the discharge opening and the conveying means (80) are located below a height H of milled material corresponding to an amount Q.
  9. 9. An apparatus for roughening and sucking related milled material, characterized in that the apparatus comprises at least one suction device according to any one of the preceding claims and at least one roughening machine (1) comprising at least one roughening tool (20) and a suction hood (100) coupled to the tool, wherein the device and the machine are configured to move at least horizontally relative to the ground, operatively connected to each other by at least one suction duct 4, which suction duct is interposed between the suction hood and an inlet suction mechanism (65).
  10. 10. The apparatus of claim 9, wherein the roughening machine comprises: -a carriage (5) and a chassis (10) configured to allow said movement relative to the ground; At least one operating arm (15) rotatable with respect to the carriage about a horizontal axis Y', -At least one roughening tool (20) placed at the distal end of the arm (15); -the roughening tool (20) comprises a frame (30) and a milling cutter (40), the milling cutter (40) being supported by the frame in a position rotatable about a milling cutter axis Y ", wherein the milling cutter axis has at least a horizontal orientation; the roughening tool (20) comprising a suction hood (100) arranged to partly enclose the milling cutter, -The hood (100) comprises an opening (110) defining a milling and suction zone (112) in front of it, the milling cutter being exposed through the opening (110) to the surface to be roughened.
  11. 11. A method of roughening and sucking milled material resulting from said roughening, characterized by the steps of: -continuously producing milled material by roughening during the roughening operation; -at least one compartment arranged for receiving the milled material; -starting loading the milling material into the compartment by suction of a suction loading mechanism (60) which depressurizes the compartment with respect to the external environment, wherein the introduction takes place during the roughening operation; -providing a discharge mechanism (65) for discharging the milled material from the compartment; -detecting the presence of a shield (75) of milled material in the compartment between the suction means (60) and the discharge means (65); -upon detecting the presence of the shielding layer (75), starting to discharge the milled material from the compartment by operating the discharge mechanism (65) and continuing to introduce the milled material during discharge by suction of the suction loading mechanism (60), thereby producing simultaneous discharge and loading of the milled material during the roughening operation.
  12. 12. The method according to claim 10, characterized in that when the presence of the shielding layer is not detected, the discharge mechanism (75) is stopped and suction with the suction loading mechanism (60) is continued.
  13. 13. The method according to claim 11 or 12, characterized in that the discharge is postponed with respect to the moment the presence of the shielding layer (75) is detected.
  14. 14. The method according to any one of claims 11 to 13, characterized in that the shielding layer (75) is detected by detecting the amount Q of milled material in the compartment.

Description

Suction mechanism for milled material, roughening device and associated suction of milled material and corresponding method Technical Field The invention relates to a suction device for milling material (MILLED MATERIAL), a roughening device (scarification equipment) and a suction of the relevant milling material and a corresponding method. The invention is particularly suitable for removing milling material resulting from roughening in the building and infrastructure fields, as described below. In particular, the present invention is directed to continuously removing milled concrete material that is continuously produced during roughening. Background In the building and infrastructure field, special roughening treatments are often required, which are understood to be precise material removal. Roughening may be for a number of reasons. For example, it is used to repair cultural relics, wherein a portion of the concrete or concrete is removed to replace it with a new layer. The surface to be repaired may be of any type, such as a curved vault of a highway tunnel, a curb of a overpass, a planar wall of a retaining wall, etc. Accurate roughening of highway tunnel vaults is particularly problematic for a number of reasons, including curved shape, the possibility of milled material falling onto the operating machine, digging out toxic materials such as asbestos, etc. The applicant has developed a very versatile operating machine and associated roughening apparatus capable of ensuring a high degree of roughening accuracy, which has been the subject of several patent applications, some of which have not yet been published, for example italian patent application No. 102021000007049 and international application nos. PCT/IB2022/062198, PCT/IB2022/060185, PCT/IB2022/062199. The general layout of such a machine comprises a carriage on which an articulated arm is mounted, the distal end of which is placed a milling cutter. In order to roughen the tunnel vault, it is necessary to suck away the excavated material in order to suppress the above-mentioned problems. The applicant has also devised a suction hood particularly suited to its machine, which is protected by the not yet published italian patent application 102023000011181. The applicant's previous patent is mentioned herein by way of reference. All these parts previously designed by the applicant constitute a functionally optimal roughening machine, the working efficiency being hampered only by the lack of suction means for connecting the resulting milled material to the cover that is able to separate the milled material from the workplace. The most common solution to date is to use various trucks with sealed container suction systems, for example as described in 102006901476112 and EP1714830B 1. However, these trucks are not capable of discharging the product while sucking, and therefore at least two trucks are required for alternating between sucking and discharging the sucked material. This means that the milling machine must be stopped in order to connect and disconnect it to and from various trucks, resulting in long downtime. Even if it is intended to discharge the truck connected to the roughening machine directly without disconnecting it, patent EP1714830B1 suggests to do so by tilting, which is not possible, for example, in tunnels, which are the environment in which the applicant's machine is mainly operating and is exclusively used. Furthermore, in this case too, the suction must be interrupted, and therefore the operation of the roughening machine must be interrupted. The problem is exacerbated if the final disposal site of the milled material is far from the roughening site, as in this case a large number of trucks may be required to be present in order to avoid waiting for the travel time and thus increase the costs unreasonably. The first attempt to solve this problem can be found in FR3011208 A1. Some embodiments of this french patent propose a truck with a body divided into two compartments, one for suction and the other for discharge. The waiting time is limited to the time required for transferring the material from the suction compartment to the discharge compartment, since the suction must be interrupted during such operation, since the sealing effect which makes suction possible is lost. The french patent then proposes an embodiment in which suction is alternately transferred from one compartment to the other, reversing their function, and suction can be applied with one compartment while discharge is applied with the other. Thus enabling the roughening machine to operate uninterrupted. However, the system of this french patent is very complex and therefore unsuitable for handling base materials such as milled concrete materials, since it requires constantly changing suction between two compartments which account for half of the total volume of the fuselage. Furthermore, this is an expensive system, which is troublesome from a maintenance poi