Anti-seismic water cutting head for TBM cutter head

Abstract

A seismic-resistant water cutting head for a TBM cutterhead comprises a cutterhead (1) and a high-pressure pipe (2), characterized in that: the water inlet end of the high-pressure pipe is connected to a water inlet joint (7) and a water outlet joint (8), the flange end (14) of the water inlet joint is fixed to the cutterhead (1) by a bolt (12), the water inlet end of the high-pressure pipe is connected to a screw sleeve (4) by an external thread, the screw sleeve (4) is connected to the water inlet joint (7) by an external thread, and the screw sleeve is axially positioned by a locking sleeve (6) with an opposite internal thread; the water outlet end of the high-pressure pipe is connected to another screw sleeve of the same structure by an external thread, the screw sleeve is also connected to the water outlet joint (8) by an external thread, and the screw sleeve is also axially positioned by another locking sleeve with an opposite internal thread, and a jewel nozzle mounting seat (9) is screwed onto one end of the water outlet joint near the water outlet end, and a jewel nozzle (10) is installed in the jewel nozzle mounting seat. The present invention has the advantages of being safe, reliable, and easy to assemble and disassemble.

Description

Technical Field

[0001] The present invention relates to a water cutting technology, in particular to a water cutting head, specifically to an anti-seismic water cutting head for a TBM cutter head. Background Art

[0002] A TBM (Tunnel Boring Machine) is a full-face hard rock tunnel boring machine. It can be categorized as either an open-type TBM or a shield machine. Construction processes such as tunneling, support, and mucking are performed simultaneously and continuously, making it a factory-based, assembly-line tunnel construction system integrating mechanical, electrical, hydraulic, optical, and pneumatic systems. The operating pressure range for seismic water jet heads used in TBM cutterheads is typically 100-400 MPa. In addition to meeting the pressure resistance, anti-loosening, and anti-retraction requirements of high-pressure waterline connections required in ultra-high-pressure water jetting, these heads must also exhibit fatigue resistance, facilitate consumable maintenance, and be able to measure operating status. Depending on the TBM cutterhead structure (i.e., whether maintenance personnel have access to the front of the cutterhead), seismic water jet heads are categorized as either rear-detachable or front-detachable. The primary difference between the two types is the direction of installation and removal of the gemstone nozzle. In order to facilitate the maintenance of the TBM cutter head, a special earthquake-resistant water cutting head needs to be designed. Summary of the Invention

[0003] The purpose of the present invention is to design a seismic-resistant water cutting head for a TBM cutter head that is easy to maintain and replace in response to the needs of the TBM cutter head.

[0004] One of the technical solutions of the present invention is:

[0005] A seismic-resistant water cutting head for a TBM cutterhead comprises a cutterhead 1 and a high-pressure pipe 2, characterized in that: the water inlet end of the high-pressure pipe 2 is connected to a water inlet joint 7, the water outlet end is connected to a water outlet joint 8, the flange end 14 of the water inlet joint 7 is fixed to the cutterhead 1 by a bolt 12, the water inlet end of the high-pressure pipe 2 is connected to a screw sleeve 4 by an external thread, the screw sleeve 4 is connected to the water inlet joint 7 by an external thread, and the screw sleeve 4 is axially positioned by a locking sleeve 6 with an opposite internal thread; the water outlet end of the high-pressure pipe 2 is connected to another screw sleeve 4 of the same structure by an external thread, the screw sleeve 4 is also connected to the water outlet joint 8 by an external thread, and the screw sleeve 4 is also axially positioned by another locking sleeve 6 with an opposite internal thread, a jewel nozzle mounting seat 9 is screwed on the end of the water outlet joint 8 close to the water outlet end, the jewel nozzle mounting seat 9 is axially positioned by a step surface 15, and a jewel nozzle 10 is installed in the jewel nozzle mounting seat 9.

[0006] The second technical solution of the present invention is:

[0007] A seismic-resistant water cutting head for a TBM cutterhead comprises a cutterhead 1 and a high-pressure pipe 2, characterized in that: the water inlet end of the high-pressure pipe 2 is connected to a water inlet joint 7, the water outlet end is connected to a water outlet joint 8, the flange end 14 of the water inlet joint 7 is fixed to the cutterhead 1 by a bolt 12, the water inlet end of the high-pressure pipe 2 is connected to a screw sleeve 4 via an external thread, the screw sleeve 4 is connected to the water inlet joint 7 via an external thread, and the screw sleeve 4 is axially positioned by a locking sleeve 6 with an opposite internal thread; the water outlet end of the high-pressure pipe 2 is connected to another screw sleeve 4 of the same structure via an external thread, the screw sleeve 4 is also connected to the water outlet joint 8 via an external thread, and the screw sleeve 4 is also axially positioned by another locking sleeve 6 with an opposite internal thread, and a jewel nozzle mounting seat 9 is screwed into the end of the water outlet joint 8 close to the water outlet end, and a jewel nozzle 10 is mounted in the jewel nozzle mounting seat 9.

[0008] The water inlet joint 7 is connected to a water inlet elbow 11 .

[0009] A screw washer 3 is installed in one end of the screw sleeve 4, and the screw washer 3 is screwed onto the high-pressure pipe 2.

[0010] The other end of the screw sleeve 4 is provided with a tapered ring 5 , which is screwed onto the high-pressure pipe 2 .

[0011] The high-pressure pipe 2 is additionally provided with a clamp-type flow sensor 16 .

[0012] A pressure sensor 17 is installed in the water inlet channel of the high-pressure pipe 2.

[0013] The pressure sensor 17 is installed on the water inlet elbow 11.

[0014] Beneficial effects of the present invention:

[0015] This invention solves the problem of rapid replacement of jewel nozzles, offering the advantages of safety, reliability, and easy assembly and disassembly. It fully meets the necessary pressure resistance, anti-loosening, and anti-retraction functions required for high-pressure waterway connections in the field of ultra-high-pressure water jet engineering technology. It also offers fatigue resistance, easy maintenance of consumables, and measurable operating status. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is one of the structural schematic diagrams of the present invention.

[0017] Figure 2 This is the second structural diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the installation position of the flow and pressure monitoring device of the present invention.

[0019] Figure 4 It is a schematic diagram of the high-pressure water flow direction of the first embodiment of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Example 1.

[0022] like Figure 1 、 3 , 4 indicates.

[0023] A rear-detachable TBM cutterhead with an anti-seismic water cutting head comprises a cutterhead 1 and a high-pressure pipe 2. The water inlet end of the high-pressure pipe 2 is connected to a water inlet joint 7. The water inlet joint 7 is connected to a water inlet elbow 11 to facilitate the input of high-pressure water. The water flow direction is as follows: Figure 4 As shown by the arrow in the middle. The water outlet end is connected to the water outlet joint 8, and the flange end 14 of the water inlet joint 7 is fixed to the cutter disc 1 by a bolt 12. The flange end 14 and the water inlet joint 7 body can be an integral structure or a structure connected in two parts. The water inlet end of the high-pressure pipe 2 is connected to the screw sleeve 4 through an external thread, and the screw sleeve 4 is connected to the water inlet joint 7 through an external thread. The screw sleeve 4 is axially positioned by a locking sleeve 6 with a reverse internal thread; the water outlet end of the high-pressure pipe 2 is connected to another screw sleeve 4 of the same structure through an external thread, and the screw sleeve 4 is also connected to the water outlet joint 8 through an external thread, and the screw sleeve 4 is also axially positioned by another locking sleeve 6 with a reverse internal thread. A jewel nozzle mounting seat 9 is screwed on the end of the water outlet joint 8 close to the water outlet end, and the jewel nozzle mounting seat 9 is axially positioned by a step surface 15. A jewel nozzle 10 is installed in the jewel nozzle mounting seat 9. As shown Figure 1 As shown, in order to achieve axial positioning of the screw sleeve, a screw washer 3 can be installed in one end of the screw sleeve 4 and a tapered ring 5 can be installed in the other end. The screw washer 3 and the tapered ring 5 are both screwed onto the high-pressure pipe 2. In order to monitor the working status of the high-pressure pipe 2 in real time, understand the blockage situation in real time, and provide a basis for replacing the gem nozzle, a clamp-type flow sensor 16 can be installed on the high-pressure pipe 2, and a pressure sensor 17 can be installed on the water inlet elbow 11, as shown in FIG. Figure 3 shown.

[0024] When the jewel nozzle needs to be replaced, just loosen the bolt 12, separate the water inlet joint 7 from the cutter head 1, and take out the entire water cutting head; then loosen the thread to separate the water outlet joint 8 from the jewel nozzle mounting base 9, and replace the jewel nozzle 10 before resuming use.

[0025] Example 2.

[0026] like Figure 2 、 3 shown.

[0027] A front-detachable TBM cutterhead with anti-seismic water cutting head, comprising a cutterhead 1 and a high-pressure pipe 2. The water inlet end of the high-pressure pipe 2 is connected to a water inlet joint 7, which is connected to a water inlet elbow 11 to facilitate the input of high-pressure water. The water flow direction is as follows: Figure 4 As shown by the arrow in the middle. The water outlet is connected to the water outlet joint 8, the flange end 14 of the water inlet joint 7 is fixed to the cutter head 1 by a bolt 12, the water inlet end of the high-pressure pipe 2 is connected to the screw sleeve 4 by an external thread, the screw sleeve 4 is connected to the water inlet joint 7 by an external thread, and the screw sleeve 4 is axially positioned by a locking sleeve 6 with a reverse internal thread; the water outlet of the high-pressure pipe 2 is connected to another screw sleeve 4 of the same structure by an external thread, and the screw sleeve 4 is also connected to the water outlet joint 8 by an external thread, and the screw sleeve 4 is also axially positioned by another locking sleeve 6 with a reverse internal thread. A jewel nozzle mounting seat 9 is screwed into the end of the water outlet joint 8 close to the water outlet, and a jewel nozzle 10 is installed in the jewel nozzle mounting seat 9, as shown in FIG. Figure 2 As shown, in order to achieve axial positioning of the screw sleeve, a screw washer 3 can be installed in one end of the screw sleeve 4 and a tapered ring 5 can be installed in the other end. The screw washer 3 and the tapered ring 5 are both screwed onto the high-pressure pipe 2. In order to monitor the working status of the high-pressure pipe 2 in real time, understand the blockage situation in real time, and provide a basis for replacing the gem nozzle, a clamp-type flow sensor 16 can be installed on the high-pressure pipe 2, and a pressure sensor 17 can be installed on the water inlet elbow 11, as shown in FIG. Figure 3 shown.

[0028] When the jewel nozzle needs to be replaced, you only need to use a tool to loosen the thread directly, separate the jewel nozzle 10 from the jewel nozzle mounting seat 9 for replacement. If the mounting surface of the jewel nozzle 10 is worn due to harsh working conditions such as falling rocks and crushing, making the jewel nozzle 10 unable to be disassembled, you can use a tool to separate the jewel nozzle mounting seat 9 from the water outlet joint 8 and replace the jewel nozzle 10 and the jewel nozzle mounting seat 9 as a whole.

[0029] The parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology.

Claims

1. A seismic-resistant water cutting head for a TBM cutterhead, comprising a cutterhead (1) and a high-pressure pipe (2), characterized in that: The water inlet end of the high-pressure pipe (2) is connected to the water inlet joint (7), and the water outlet end is connected to the water outlet joint (8). The flange end (14) of the water inlet joint (7) is fixed to the cutter head (1) by a bolt (12). The water inlet end of the high-pressure pipe (2) is connected to the screw sleeve (4) through an external thread, and the screw sleeve (4) is connected to the water inlet joint (7) through an external thread. The screw sleeve (4) is axially positioned by a locking sleeve (6) with a reverse internal thread. The water outlet end of the high-pressure pipe (2) is connected to another screw sleeve (4) of the same structure through an external thread. The screw sleeve (4) is also connected to the water outlet joint (8) through an external thread. The screw sleeve (4) is also Axial positioning is achieved through another locking sleeve (6) with a reverse internal thread, and a jewel nozzle mounting seat (9) is screwed onto one end of the water outlet joint (8) close to the water outlet end, and the jewel nozzle mounting seat (9) achieves axial positioning through a step surface (15), and a jewel nozzle (10) is installed in the jewel nozzle mounting seat (9); the water inlet joint (7) is connected to the water inlet elbow (11); a screw washer (3) is added to one end of the screw sleeve (4), and the screw washer (3) is screwed onto the high-pressure pipe (2); the other end of the screw sleeve (4) is added to a tapered ring (5), and the tapered ring (5) is screwed onto the high-pressure pipe (2).

2. A seismic-resistant water cutting head for a TBM cutterhead, comprising a cutterhead (1) and a high-pressure pipe (2), characterized in that: The water inlet end of the high-pressure pipe (2) is connected to a water inlet joint (7), and the water outlet end is connected to a water outlet joint (8). The flange end (14) of the water inlet joint (7) is fixed to the cutter head (1) by a bolt (12). The water inlet end of the high-pressure pipe (2) is connected to a screw sleeve (4) by an external thread. The screw sleeve (4) is connected to the water inlet joint (7) by an external thread. The screw sleeve (4) is axially positioned by a locking sleeve (6) with a reverse internal thread. The water outlet end of the high-pressure pipe (2) is connected to another screw sleeve (4) of the same structure by an external thread. The screw sleeve (4) is also connected to the water outlet joint by an external thread. (8) connection, the screw sleeve (4) is also axially positioned by another locking sleeve (6) with reverse internal threads, a jewel nozzle mounting seat (9) is screwed into one end of the water outlet joint (8) close to the water outlet end, and a jewel nozzle (10) is installed in the jewel nozzle mounting seat (9); the water inlet joint (7) is connected to the water inlet elbow (11); a screw washer (3) is added to one end of the screw sleeve (4), and the screw washer (3) is screwed onto the high-pressure pipe (2); the other end of the screw sleeve (4) is added to a tapered ring (5), and the tapered ring (5) is screwed onto the high-pressure pipe (2).

3. The anti-seismic water cutting head for TBM cutterhead according to claim 1 or 2, characterized in that A clamp-type flow sensor (16) is installed on the high-pressure pipe (2).

4. The anti-seismic water cutting head for TBM cutterhead according to claim 1 or 2, characterized in that A pressure sensor (17) is installed in the water inlet channel of the high-pressure pipe (2).

5. The anti-seismic water cutting head for TBM cutterhead according to claim 4 is characterized in that The pressure sensor (17) is installed on the water inlet elbow (11).

Images