TBM tool changing robot special high-pressure cleaning device

Abstract

The utility model discloses a high pressure cleaning device special for TBM tool changing robot belongs to shield machine technical field. High pressure cleaning device special for TBM tool changing robot, including tool changing main shaft and cleaning spray gun, tool changing main shaft includes telescopic subassembly, tool changing fixture and claw utensil support axle, wherein, claw utensil support axle is connected with tool changing main shaft through telescopic subassembly, tool changing fixture is installed in the left and right sides of claw utensil support axle, and cleaning spray gun is installed in one side of claw utensil support axle, the cleaning spray gun includes high pressure spray head, pump head subassembly and clamp. To solve the problem that the existing tunnel boring machine will have a lot of silt to adhere in the inside of cutter and cutter groove in the excavation process, and the accumulated silt rubs between cutters, thereby affecting the service life of cutter, adopt the spray flow structure of main valve nozzle and many side valve nozzle combination, form the three -dimensional water flow field of the combination of central direct -firing and circumferential scattering, can go into cutter groove inside and cutter structure gap, thoroughly remove the adhered silt.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine technology, specifically a high-pressure cleaning device for a TBM cutterhead robot. Background Technology

[0002] A full-face tunnel boring machine (TBM) is a large and complex tunnel boring machine that integrates mechanical, electrical, hydraulic, optical, and control systems. It uses the roller cutters on the rotating cutterhead to squeeze and shear the rock, and the slag is picked up by the bucket teeth on the rotating cutterhead. The slag is then transported backward on the main conveyor belt and transported to the outside of the tunnel by traction slag cars or continuous conveyor belts in the tunnel.

[0003] During the excavation process, existing tunnel boring machines accumulate a large amount of mud and sand on the cutting tools and inside the tool slots. The accumulated mud and sand cause friction between the cutting tools, thus affecting their service life. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure cleaning device for TBM tool changing robots. It adopts a jet structure combining a main valve nozzle and multiple side valve nozzles to form a three-dimensional water flow field that combines central direct jetting and circumferential scattering. This can penetrate deep into the tool groove and tool structure gaps to thoroughly remove attached mud and sand, thus solving the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure cleaning device for TBM tool changing robots, comprising a tool changing spindle and a cleaning spray gun. The tool changing spindle includes a telescopic assembly, a tool changing clamp, and a gripper support shaft. The gripper support shaft is connected to the tool changing spindle via the telescopic assembly. The tool changing clamp is installed on the left and right sides of the gripper support shaft. The cleaning spray gun is installed on one side of the gripper support shaft. The cleaning spray gun includes a high-pressure nozzle, a pump head assembly, and a clamp.

[0006] With the above solution, the cleaning spray gun is integrated into the claw support shaft, which can clean the cutter head area in real time while the tool changing robot is performing tool grabbing, disassembly and installation. This enables simultaneous tool changing and cleaning operations, significantly reducing downtime and improving tunnel excavation efficiency.

[0007] Preferably, the high-pressure nozzle is installed at one end of the cleaning spray gun via an internal thread, and the pump head assembly is installed at the other end of the cleaning spray gun, wherein a hose interface is provided on one side of the pump head assembly.

[0008] Preferably, the clamps are distributed at both ends of the high-pressure nozzle, and the clamps are connected to the claw support shaft by bolts.

[0009] Preferably, the high-pressure nozzle has a main valve nozzle installed inside, and the main valve nozzle is configured as a horizontal structure.

[0010] Preferably, one end of the main valve nozzle extends to the front end of the high-pressure nozzle, and the other end of the main valve nozzle is equipped with a slidable magnetic push plate. An electromagnetic sleeve is installed between the high-pressure nozzle and the cleaning spray gun, and the electromagnetic sleeve is located on one side of the magnetic push plate.

[0011] The above solution allows for flexible switching between single main valve nozzle spraying and combined main and side valve nozzle spraying modes by controlling the on / off state of the electromagnetic sleeve, adapting to the cleaning needs of mud and sand with different adhesion levels, and improving water flow utilization efficiency and cleaning targeting.

[0012] Preferably, rubber plugs are distributed in a ring on one side of the magnetic push plate, and side valves are distributed in a ring around the main valve nozzle, with one end of the side valves extending to the outside of the high-pressure nozzle, and the rubber plugs fitting into the other end of the side valves.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model adopts a jet structure combining a main valve nozzle and multiple side valve nozzles to form a three-dimensional water flow field that combines central direct jetting and circumferential scattering. It can penetrate deep into the inside of the tool groove and the gaps in the tool structure to thoroughly remove attached mud and sand, avoiding the dead angle problem of traditional single-direction flushing. 2. This utility model significantly reduces frictional wear between the tool and the sand particles by promptly removing the mud and sand accumulated in the tool and tool groove, thereby reducing abnormal wear of the tool, extending the overall service life of the tool, and reducing the replacement frequency and construction costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the cleaning spray gun installation of this utility model; Figure 2 This is a schematic diagram of the cleaning spray gun structure of this utility model; Figure 3 This is a schematic diagram of the high-pressure nozzle structure of this utility model.

[0015] In the diagram: 1. Tool changing spindle; 2. Cleaning spray gun; 101. Telescopic assembly; 102. Tool changing clamp; 103. Claw support shaft; 201. High-pressure nozzle; 202. Pump head assembly; 203. Clamp; 2011. Main valve nozzle; 2012. Electromagnetic sleeve; 2013. Magnetic push plate; 2014. Rubber plug; 2015. Side valve nozzle; 2021. Hose interface. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] To address the issue of existing tunnel boring machines accumulating large amounts of mud and sand during excavation, causing friction between the cutters and thus affecting their lifespan; please refer to... Figure 1-3 The present invention provides the following solution: The TBM tool changer robot's dedicated high-pressure cleaning device includes a tool changer spindle 1 and a cleaning spray gun 2. The tool changer spindle 1 includes a telescopic assembly 101, a tool changer clamp 102, and a gripper support shaft 103. The gripper support shaft 103 is connected to the tool changer spindle 1 via the telescopic assembly 101. The tool changer clamp 102 is installed on the left and right sides of the gripper support shaft 103. The cleaning spray gun 2 is installed on one side of the gripper support shaft 103. The cleaning spray gun 2 includes a high-pressure nozzle 201, a pump head assembly 202, and a clamp 203. The high-pressure nozzle 201 is installed at one end of the cleaning spray gun 2 via an internal thread. The pump head assembly 202 is installed at the other end of the cleaning spray gun 2. A hose interface 2021 is provided on one side of the pump head assembly 202. The clamps 203 are distributed at both ends of the high-pressure nozzle 201 and are connected to the gripper support shaft 103 by bolts. In this embodiment, the tool changing spindle 1 drives the claw support shaft 103 and the tool changing fixture 102 mounted thereon to move to the position of the tool to be cleaned through the telescopic component 101. At this time, the cleaning spray gun 2 moves synchronously with the claw support shaft 103 and is adjusted to align with the tool surface and the inside of the tool groove. The high-pressure water source is connected to the pump head assembly 202 through the hose interface 2021 and delivered to the inside of the cleaning spray gun 2. The clamp 203 securely connects the high-pressure nozzle 201 to the claw support shaft 103 with bolts to ensure that the nozzle does not shift or vibrate under the high-pressure reaction force and maintains the spraying accuracy.

[0018] The high-pressure nozzle 201 has a main valve 2011 installed inside, and the main valve 2011 is set to a horizontal structure. One end of the main valve 2011 extends to the front end of the high-pressure nozzle 201, and the other end of the main valve 2011 is equipped with a sliding magnetic push plate 2013. Rubber plugs 2014 are distributed in a ring on one side of the surface of the magnetic push plate 2013. Side valves 2015 are distributed in a ring around the main valve 2011, and one end of the side valves 2015 extends to the outside of the high-pressure nozzle 201. The rubber plugs 2014 are in contact with the other end of the side valves 2015. An electromagnetic sleeve 2012 is installed between the high-pressure nozzle 201 and the cleaning spray gun 2. The electromagnetic sleeve 2012 is located on one side of the magnetic push plate 2013. In this embodiment, when the electromagnetic sleeve 2012 is energized, an axial magnetic field is generated, which drives the magnetic pusher 2013 to slide backward along the main valve nozzle 2011. The rubber plug 2014 on the magnetic pusher 2013 then disengages from the port of the side valve nozzle 2015, thereby opening the lateral water outlet channel. The high-pressure water flow is then ejected horizontally from the front end of the main valve nozzle 2011 and sprayed outward from the annularly distributed side valve nozzles 2015, forming a three-dimensional cleaning water flow with the horizontal jet as the core and multi-angle diffusion. This water flow can cover the surface of the tool and the area where mud and sand accumulate in the tool groove, achieving powerful flushing and peeling. During the cleaning process, the side valve nozzle 2015 can be quickly opened and closed by controlling the on / off state of the electromagnetic sleeve 2012 to switch the cleaning mode. After cleaning is completed, the electromagnetic sleeve 2012 is de-energized, the magnetic push plate 2013 returns to its original position under the action of the reset mechanism or water pressure, the rubber plug 2014 re-seals the side valve nozzle 2015, and the water flow stops spraying out.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure cleaning device for TBM tool changer robots, characterized in that, The device includes a tool changing spindle (1) and a cleaning spray gun (2). The tool changing spindle (1) includes a telescopic assembly (101), a tool changing clamp (102), and a gripper support shaft (103). The gripper support shaft (103) is connected to the tool changing spindle (1) through the telescopic assembly (101). The tool changing clamp (102) is installed on the left and right sides of the gripper support shaft (103). The cleaning spray gun (2) is installed on one side of the gripper support shaft (103). The cleaning spray gun (2) includes a high-pressure nozzle (201), a pump head assembly (202), and a clamp (203).

2. The high-pressure cleaning device for TBM tool changer robots according to claim 1, characterized in that: The high-pressure nozzle (201) is installed at one end of the cleaning spray gun (2) via an internal thread, and the pump head assembly (202) is installed at the other end of the cleaning spray gun (2). A hose interface (2021) is provided on one side of the pump head assembly (202).

3. The high-pressure cleaning device for TBM tool changing robots according to claim 1, characterized in that: The clamps (203) are distributed at both ends of the high-pressure nozzle (201), and the clamps (203) are connected to the claw support shaft (103) by bolts.

4. The high-pressure cleaning device for TBM tool changer robots according to claim 1, characterized in that: The high-pressure nozzle (201) is equipped with a main valve (2011), and the main valve (2011) is configured as a horizontal structure.

5. The high-pressure cleaning device for TBM tool changer robots according to claim 4, characterized in that: One end of the main valve nozzle (2011) extends to the front end of the high-pressure nozzle (201), and the other end of the main valve nozzle (2011) is equipped with a sliding magnetic push plate (2013).

6. The high-pressure cleaning device for TBM tool changer robots according to claim 5, characterized in that: The surface of one side of the magnetic push plate (2013) is provided with rubber plugs (2014) arranged in a ring. The main valve nozzle (2011) is provided with side valve nozzles (2015) arranged in a ring around it, and one end of the side valve nozzle (2015) extends to the outside of the high-pressure nozzle (201).

7. The high-pressure cleaning device for TBM tool changer robots according to claim 6, characterized in that: The rubber plug (2014) is attached to the other end of the side valve (2015).

8. The high-pressure cleaning device for TBM tool changing robots according to claim 7, characterized in that: An electromagnetic sleeve (2012) is installed between the high-pressure nozzle (201) and the cleaning spray gun (2), and the electromagnetic sleeve (2012) is located on one side of the magnetic push plate (2013).

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