Tunnel Boring Machine with Abrasive Water Jet Assisted Rock Breaking and Pile Cutting Complete Equipment

Abstract

Tunnel boring machine loaded with abrasive water jet assisted rock breaking and pile cutting complete equipment, belonging to the technical field of abrasive water jet tunnel boring machines, includes ultra-high pressure water, abrasive, and gas passing through the integral cutter head center rotation system of the tunnel boring machine, the cutter for tunnel boring machine and the abrasive water jet composite front main cutting gun, and the cutter for tunnel boring machine and the abrasive water jet composite edge main cutting gun. The sand supply, compressed air, and water are evenly divided into static and dynamic parts. There are two main cutting guns on the cutter head to achieve continuous supply of sand, gas, and water in a rotating state. The static sand bin sand inlet is above to ensure that each sand distribution port has sand, and the water distributor has less energy loss and smaller volume.

Description

Technical Field

[0001] The present invention belongs to the technical field of abrasive water jet tunnel boring machines, and particularly relates to a complete set of equipment for loading abrasive water jets to assist in rock breaking and pile cutting of tunnel boring machines. Background Art

[0002] With the development of the current national infrastructure construction, the limitations of current shield machines and TBMs (full-face hard rock tunnel boring machines) are becoming more and more obvious, and they cannot meet the requirements of high-speed and efficient infrastructure construction. For example, in the past, when encountering ultra-hard rocks or hard rocks, it was necessary to detour for railway and subway construction, which affected the construction period and wasted resources. If encountering long underground foundation construction piles, such as those longer than 25 meters, they will be blocked, difficult to cut, detouring will affect the construction period and waste resources.

[0003] The cutter head and cutters of the equipment are expensive, while the technology of abrasive water jets uses water and sand, which has lower costs, is more environmentally friendly, convenient for material collection, and can reduce detours or complete construction tasks without detours.

[0004] The cutter head of the tunnel boring machine rotates (revolves) for tunneling, and sand, gas, and water all need to be fed through pipelines. Continuous rotation will inevitably cause knotting and breakage. Therefore, how to supply sand, gas, and water to the rotating cutter head is a technical problem. When dividing water in front of the cutter head, in the prior art, there is a water supply pipe in series with multiple outlet pipes, with a large connection volume and large energy loss during the water flow process.

[0005] The currently used water jet heads of tunnel boring machines (shield machines and TBM full-face hard rock tunnel boring machines) directly spray the mixture of water and abrasive (sand). Such a water jet head structure is relatively fragile and easy to damage, and when the cutter head cuts, the edge angles of the object to be cut cannot be reached. Summary of the Invention

[0006] The purpose of the present invention is to provide a complete set of equipment for loading abrasive water jets to assist in rock breaking and pile cutting of tunnel boring machines, which can supply sand, compressed air, and ultra-high pressure water in a rotating state for rock breaking and column cutting.

[0007] The technical solution adopted is:

[0008] A complete set of equipment for loading abrasive water jets to assist in rock breaking and pile cutting of tunnel boring machines includes ultra-high pressure water, abrasive, and gas passing through the overall cutter head center rotation system of the tunnel boring machine and multiple composite front main cutting guns of cutter tools for tunnel boring machines and abrasive water jets.

[0009] The technical key points are as follows:

[0010] Multiple cutter tools for tunnel boring machines and composite front main cutting guns of abrasive water jets are provided on the cutter head of the overall cutter head center rotation system of the tunnel boring machine for ultra-high pressure water, abrasive, and gas, thus forming a complete set of equipment for loading abrasive water jets of the tunnel boring machine.

[0011] Ultra-high pressure water, abrasive, and gas pass through the integral cutter head central slewing system of a tunnel boring machine, including abrasive conveying through the integral cutter head central slewing mechanism of the tunnel boring machine, compressed air through the integral cutter head central slewing mechanism of the tunnel boring machine, and ultra-high pressure water through the integral cutter head central slewing mechanism of the tunnel boring machine.

[0012] A static sand bin is provided behind the cutter head, and a static sand bin sand inlet is opened on the outer shell of the static sand bin.

[0013] Abrasive conveying through the integral cutter head central slewing mechanism of the tunnel boring machine: includes a static sand bin and a dynamic sand bin.

[0014] The static sand bin includes a left annular plate of the static sand bin, a right annular plate of the static sand bin, an outer shell of the static sand bin, and a central pipe of the static sand bin.

[0015] Both ends of the outer shell of the static sand bin are respectively connected to the outer ring of the left annular plate of the static sand bin and the outer ring of the right annular plate of the static sand bin.

[0016] Both ends of the central pipe of the static sand bin are respectively connected to the inner ring of the left annular plate of the static sand bin and the inner ring of the right annular plate of the static sand bin.

[0017] A circular static sand bin annular opening is opened on the right annular plate of the static sand bin, located outside the central pipe of the static sand bin.

[0018] A dynamic sand bin is provided inside the static sand bin. The middle part of the dynamic sand bin is a dynamic sand bin pipe. The dynamic sand bin pipe is arranged inside the central pipe of the static sand bin. The front part of the dynamic sand bin is a sand distribution plate fixed to the dynamic sand bin pipe. The front port of the dynamic sand bin pipe is fixed in the central hole of the sand distribution plate. The sand distribution plate is rotatably connected corresponding to the static sand bin annular opening.

[0019] A plurality of sand distribution pipes are provided on the circumference of the sand distribution plate, and the sand distribution pipes are fixedly connected to a plurality of cutter head sand channels opened on the front cutter head.

[0020] A dynamic sand bin flange is provided behind the dynamic sand bin pipe and extends backward out of the static sand bin.

[0021] The outlet of the sand hopper is connected to the static sand bin sand inlet.

[0022] In front of the cutter head, there is a cutter for tunnel boring machine and a composite front main cutting gun of abrasive water jet.

[0023] The sand inlet of the cutter for tunnel boring machine and the composite front main cutting gun of abrasive water jet is connected to the corresponding cutter head sand channel.

[0024] The water inlet of the cutter for tunnel boring machine and the composite front main cutting gun of abrasive water jet is connected to the water outlet of the corresponding water switch, and the water inlet of the water switch is connected to the corresponding distribution water pipe.

[0025] Compressed air through the integral cutter head central slewing mechanism of the tunnel boring machine: includes a static air bin and a dynamic air bin;

[0026] There is a static air chamber behind the static sand bin; the static air chamber is provided with a static air chamber air inlet connected to the outlet of the air pump.

[0027] The static air chamber includes a left annular plate of the static air chamber, a right annular plate of the static air chamber, a static air chamber housing, and a central tube of the static air chamber.

[0028] The area of the central hole of the right annular plate of the static air chamber is larger than the area of the central hole of the left annular plate of the static air chamber, and the shape of the hole of the central tube of the static air chamber is the same as the shape of the central hole of the right annular plate of the static air chamber.

[0029] Both ends of the static air chamber housing are respectively connected to the outer ring of the left annular plate of the static air chamber and the outer ring of the right annular plate of the static air chamber.

[0030] One end of the central tube of the static air chamber is connected to the central hole of the right annular plate of the static air chamber, and the other end is connected to the left annular plate of the static air chamber.

[0031] The central tube of the static air chamber is provided with a plurality of static air chamber air outlet holes.

[0032] The circular moving air chamber cover plate of the moving air chamber is arranged in front of the right annular plate of the static air chamber and is rotatably connected therebetween;

[0033] The moving air chamber cover plate is connected forward to the outer layer of the gas pipeline sandwich of the gas pipeline.

[0034] The gas pipeline sandwich of the gas pipeline communicates with the space inside the central tube of the static air chamber.

[0035] The gas pipeline passes forward through the central tube of the static sand bin, the moving sand bin tube, and the cutter head hole, and a plurality of air outlet holes are provided at the front edge of the front end of the gas pipeline.

[0036] Ultra-high pressure water passes through the integral cutter head central rotary mechanism of the tunnel boring machine: including a static water chamber and an ultra-high pressure water distributor of the tunnel boring machine.

[0037] The entrance part of the static water chamber is provided behind the static air chamber, and a static water chamber water inlet is provided and connected to the outlet of the water pump.

[0038] The middle static water chamber extends forward, passes through the static air chamber, and at the same time seals the central hole of the left annular plate of the static air chamber of the static air chamber.

[0039] The middle static water chamber penetrates into the central hole of the rear edge of the gas pipeline sandwich and is provided with a gas chamber sealing ring.

[0040] The front end of the middle static water chamber penetrates out of the gas pipeline.

[0041] The front end of the middle static water chamber is rotatably connected to the water inlet of the ultra-high pressure water distributor of the tunnel boring machine.

[0042] The ultra-high pressure water distributor of the tunnel boring machine is provided with an axial blind hole as an equalizing chamber body, and the inlet of the equalizing chamber body is the water inlet of the ultra-high pressure water distributor of the tunnel boring machine.

[0043] For the cylindrical shape part of the ultra-high pressure water distributor of the tunnel boring machine, a plurality of water distribution holes are opened to connect the distribution water pipes and communicate with the pressure equalizing chamber body.

[0044] The ultra-high pressure water distributor of the tunnel boring machine is fixedly connected to the cutter head.

[0045] The cutter for the tunnel boring machine and the abrasive water jet composite front main cutting gun: including the front main cutting gun water inlet pipe, the front main cutting gun sand inlet pipe, the front main cutting gun cutter housing and the front main cutting gun sand pipe nozzle.

[0046] After the outlet of the front main cutting gun water inlet pipe and the outlet of the front main cutting gun sand inlet pipe are connected, they are jointly connected to the inlet of the front main cutting gun sand pipe nozzle.

[0047] The front main cutting gun water inlet pipe, the front main cutting gun sand inlet pipe and the front main cutting gun sand pipe nozzle are externally provided with the front main cutting gun cutter housing.

[0048] The front main cutting gun cutter housing is filled with the front main cutting gun resin layer.

[0049] At the edge of the cutter head, there is a cutter for the tunnel boring machine and the abrasive water jet composite edge main cutting gun.

[0050] Both the edge main cutting gun water inlet pipe and the edge main cutting gun sand inlet pipe are bent; the bending obtuse angle Z is 110° - 160°.

[0051] Its advantages are as follows:

[0052] The tunnel boring machine loading the abrasive water jet assisted rock breaking and pile cutting complete set of equipment can realize the supply of sand, compressed air and ultra-high pressure water in the rotating state for rock breaking and pile cutting.

[0053] The rotating body can realize the continuous supply of sand, gas and water in the rotating state.

[0054] The sand outlet of the static sand bin and the sand inlet of the moving sand bin are rotationally matched, and the moving sand bin supplies sand as it rotates with the cutter head.

[0055] The air outlet of the static air bin and the air inlet of the moving air bin are rotationally matched, and the moving air bin supplies air as it rotates with the cutter head.

[0056] The water outlet of the static water bin and the water inlet of the ultra-high pressure water distributor of the tunnel boring machine are rotationally matched, and the ultra-high pressure water distributor of the tunnel boring machine supplies water as it rotates with the cutter head.

[0057] The sand inlet of the static sand bin is arranged above the static sand bin, which can ensure that each sand distribution port of the moving sand bin can have sand supply.

[0058] The water distributor has less energy loss and a smaller volume than connecting multiple outlet water pipes in series.

[0059] The main cutting gun is externally reinforced on the basis of a traditional water knife head, with a strong structure and a longer service life.

[0060] In particular, the inclined setting of the main cutting gun at the edge can achieve the cutting of the edge angle (corner cleaning) of the object to be cut. The main cutting gun can achieve the combination of the tool housing and the abrasive water jet. Brief Description of the Drawings

[0061] Figure 1 It is the front view of a revolving body.

[0062] Figure 2 It is Figure 1 the right view of

[0063] Figure 3 It is Figure 1 the left view of

[0064] Figure 4 It is Figure 3 the A-A sectional view of

[0065] Figure 5 It is the axonometric view of a revolving body.

[0066] Figure 6 It is the front view of a revolving sand supply mechanism.

[0067] Figure 7 It is the right view of a revolving sand supply mechanism.

[0068] Figure 8 It is the left view of a revolving sand supply mechanism.

[0069] Figure 9 It is Figure 8 the B-B sectional view of

[0070] Figure 10 It is the axonometric view of a revolving sand supply mechanism.

[0071] Figure 11 It is the front view of a revolving gas supply mechanism.

[0072] Figure 12 It is the right view of a revolving gas supply mechanism.

[0073] Figure 13 It is the left view of a revolving gas supply mechanism.

[0074] Figure 14 It is Figure 13 the C-C sectional view of

[0075] Figure 15 It is the axonometric view of a revolving gas supply mechanism.

[0076] Figure 16 It is the front view of a revolving water supply mechanism.

[0077] Figure 17 It is the right view of the rotary water supply mechanism.

[0078] Figure 18 It is the left view of the rotary water supply mechanism.

[0079] Figure 19 It is Figure 18 the D-D sectional view of

[0080] Figure 20 It is the isometric view of the rotary water supply mechanism.

[0081] Figure 21 It is the isometric view of the ultra-high pressure water distributor of the tunnel boring machine.

[0082] Figure 22 It is the isometric view of the front main cutting gun.

[0083] Figure 23 It is Figure 22 the E-E sectional view of

[0084] Figure 24 It is Figure 22 the F-F sectional view of

[0085] Figure 25 It is the isometric view of the edge main cutting gun.

[0086] Figure 26 It is Figure 25 the G-G sectional view of

[0087] Figure 27 It is Figure 25 the H-H sectional view of

[0088] Figure 28 It is the sectional view of the complete set of equipment.

[0089] Figure 29 It is the isometric view of the complete set of equipment.

[0090] Figure 30 It is the side view of the complete set of equipment.

[0091] Figure 31 It is the schematic diagram of the structure in the prior art with large energy loss and larger volume when multiple outlet pipes are connected in series.

[0092] Cutter head 1, water switch 2, cutter head holes 3, static sand bin 4, static sand bin sand inlet 5, middle static water bin 6, static sand bin annular opening 7, moving sand bin 8, moving sand bin pipe 9, sand distribution plate 10, sand distribution pipe 11, cutter head sand channel 12, moving sand bin flange 13, combined front main cutting gun of tunneling machine tool and abrasive water jet 14, static air bin 15, static air bin air inlet 16, static air bin air outlet 17, moving air bin 18, moving air bin cover plate 19, air delivery pipe 20, air outlet 21, air delivery pipe interlayer 22, static water bin 23, static water bin water inlet 24, ultra-high pressure water distributor of tunneling machine 25, pressure equalizing bin body 26, water distribution holes 27, left annular plate of static sand bin 28, right annular plate of static sand bin 29, static sand bin housing 30, central pipe of static sand bin 31, left annular plate of static air bin 32, right annular plate of static air bin 33, static air bin housing 34, central pipe of static air bin 35, water distribution pipe 37, combined edge main cutting gun of tunneling machine tool and abrasive water jet 38, water pump 39, air pump 40.

[0093] Inlet pipe of front main cutting gun 41, inlet sand pipe of front main cutting gun 42, cutter housing of front main cutting gun 43, sand pipe nozzle of front main cutting gun 44, resin layer of front main cutting gun 45.

[0094] Inlet pipe of edge main cutting gun 46, inlet sand pipe of edge main cutting gun 47, cutter housing of edge main cutting gun 48, sand pipe nozzle of edge main cutting gun 49, resin layer of edge main cutting gun 50.

[0095] Sealing joint a 51, inlet pipe a 52, sealing joint b 53, adapter a 54, sealing joint c 55.

[0096] Sealing joint d 56, inlet pipe b 57, sealing joint e 58, sealing joint f 59, adapter b 60.

[0097] Right-angle tool holder of edge main cutting gun 61. Specific implementation mode

[0098] Complete set of equipment for loading abrasive water jet assisted rock breaking and pile cutting of tunneling machine, including ultra-high pressure water, abrasive, gas passing through the integral cutter head central rotation system of tunneling machine, combined front main cutting gun 14 (front main cutting gun) of tunneling machine tool and abrasive water jet and combined edge main cutting gun 38 (edge main cutting gun) of tunneling machine tool and abrasive water jet.

[0099] Ultra-high pressure water, abrasive, gas passing through the integral cutter head central rotation system of tunneling machine, including abrasive conveying through the integral cutter head central rotation mechanism of tunneling machine (rotary sand supply mechanism), compressed air passing through the integral cutter head central rotation mechanism of tunneling machine (rotary air supply mechanism) and ultra-high pressure water passing through the integral cutter head central rotation mechanism of tunneling machine (rotary water supply mechanism).

[0100] There is a circular cutter head 1 at the front.

[0101] There is an axial circular cutter head hole 3 (blind hole) behind the center of the cutter head 1.

[0102] There is a static sand bin 4 behind the cutter head 1, and a static sand bin sand inlet 5 is opened above the static sand bin 4 (the outer shell 30 of the static sand bin).

[0103] The abrasive is transported through the integral cutter head central slewing mechanism of the tunnel boring machine: including the static sand bin 4 and the moving sand bin 8.

[0104] The static sand bin 4 is an annular bin body, including the left annular plate 28 of the static sand bin, the right annular plate 29 of the static sand bin, the outer shell 30 of the static sand bin and the central pipe 31 of the static sand bin.

[0105] The left annular plate 28 of the static sand bin and the right annular plate 29 of the static sand bin have the same shape and are both circular.

[0106] The outer shell 30 of the static sand bin and the central pipe 31 of the static sand bin are both cylindrical.

[0107] Both ends of the outer shell 30 of the static sand bin are respectively connected to the outer ring of the left annular plate 28 of the static sand bin and the outer ring of the right annular plate 29 of the static sand bin.

[0108] Both ends of the central pipe 31 of the static sand bin are respectively connected to the inner ring of the left annular plate 28 of the static sand bin and the inner ring of the right annular plate 29 of the static sand bin.

[0109] In front of the static sand bin 4, a circular static sand bin annular opening 7 is opened on the right annular plate 29 of the static sand bin, which is located outside the central pipe 31 of the static sand bin.

[0110] There is a moving sand bin 8 inside the static sand bin 4. The middle part of the moving sand bin 8 is a circular moving sand bin pipe 9. The moving sand bin pipe 9 is arranged inside the central pipe 31 of the static sand bin. The front part of the moving sand bin 8 is a sand distribution plate 10 fixed to the moving sand bin pipe 9. The sand distribution plate 10 is circular. The front end opening of the moving sand bin pipe 9 is fixed in the central hole of the sand distribution plate 10. The sand distribution plate 10 is rotatably connected to the static sand bin annular opening 7 and is provided with a sand bin sealing ring.

[0111] A plurality of sand distribution pipes 11 are provided on the circumference of the sand distribution plate 10. The sand distribution pipes 11 are fixedly connected and distributed with a plurality of cutter head sand channels 12 opened on the front cutter head 1.

[0112] A moving sand bin flange 13 is arranged behind the moving sand bin pipe 9 and extends backward out of the static sand bin 4.

[0113] Sand enters from the static sand bin sand inlet 5 and fills the static sand bin 4. The rotation of the cutter head 1 drives the rotation (slewing) of the sand distribution pipes 11, the sand distribution plate 10, the moving sand bin pipe 9 and the moving sand bin flange 13 (i.e., the moving sand bin 8). The sand enters the plurality of sand distribution pipes 11 of the sand distribution plate 10 from the front static sand bin annular opening 7.

[0114] The static sand bin 4 is arranged on the frame (equipped with a forward power device and wheels).

[0115] The sand hopper supplies sand to the sand inlet 5 of the static sand bin.

[0116] In front of the cutter head 1, there are a composite front main cutting gun 14 for tunnel boring machine tools and abrasive water jet (front main cutting gun) and a composite edge main cutting gun 38 for tunnel boring machine tools and abrasive water jet (edge main cutting gun).

[0117] The sand inlet of the composite front main cutting gun 14 for tunnel boring machine tools and abrasive water jet is connected to the corresponding cutter head sand channel 12.

[0118] The water inlet of the composite front main cutting gun 14 for tunnel boring machine tools and abrasive water jet is connected to the water outlet of the corresponding water switch 2, and the water inlet of the water switch 2 is connected to the corresponding distribution water pipe 37.

[0119] A plurality of water switches 2 are arranged inside the cutter head 1. One water switch 2 is used for one-way sand, gas and water of each main cutting gun.

[0120] The sand inlet of the composite edge main cutting gun 38 for tunnel boring machine tools and abrasive water jet is connected to the corresponding cutter head sand channel 12.

[0121] The water inlet of the composite edge main cutting gun 38 for tunnel boring machine tools and abrasive water jet is connected to the water outlet of the corresponding water switch 2, and the water inlet of the water switch 2 is connected to the corresponding distribution water pipe 37.

[0122] Negative pressure will be generated during water supply, bringing out sand abrasive.

[0123] The cutter head 1 and the moving sand bin 8 rotate, and continuous sand supply to the cutter head 1 can be realized during rotation.

[0124] Furthermore, for firm assembly, a circular groove is provided at the annular opening 7 of the static sand bin, and a corresponding boss is provided at the edge of the sand dividing plate 10 for engaging and rotating.

[0125] Compressed air passes through the integral cutter head central rotating mechanism of the tunnel boring machine: including a static air bin 15 and a moving air bin 18.

[0126] A static air bin 15 is provided behind the static sand bin 4. The static air bin 15 is provided with a static air bin air inlet 16.

[0127] The static air bin 15 is a circular ring-shaped bin body, including a left annular plate 32 of the static air bin, a right annular plate 33 of the static air bin, a static air bin housing 34 and a central pipe 35 of the static air bin.

[0128] The outer circles of the left annular plate 32 of the static air bin and the right annular plate 33 of the static air bin are equal.

[0129] The diameter of the central hole of the right annular plate 33 of the static air chamber is larger than the diameter of the central circular hole of the left annular plate 32 of the static air chamber, and the diameter of the central pipe 35 of the static air chamber is equal to the diameter of the central circular hole of the right annular plate 33 of the static air chamber.

[0130] Both the outer shell 34 of the static air chamber and the central pipe 35 of the static air chamber are cylindrical, and the diameter of the outer shell 34 of the static air chamber is larger than the diameter of the central pipe 35 of the static air chamber.

[0131] Both ends of the outer shell 34 of the static air chamber are respectively connected to the outer ring of the left annular plate 32 of the static air chamber and the outer ring of the right annular plate 33 of the static air chamber.

[0132] One end of the central pipe 35 of the static air chamber is connected to the central hole of the right annular plate 33 of the static air chamber, and the other end is connected to the left annular plate 32 of the static air chamber (larger than the central hole of the left annular plate 32 of the static air chamber).

[0133] A plurality of static air chamber air outlet holes 17 are provided on the circumference of the central pipe 35 of the static air chamber.

[0134] The circular moving air chamber cover plate 19 (flange) of the moving air chamber 18 is arranged in front of the right annular plate 33 of the static air chamber and is rotatably connected therebetween.

[0135] The moving air chamber cover plate 19 is connected forward to the outer layer of the gas pipeline sandwich 22 of the gas pipeline 20.

[0136] The gas pipeline sandwich 22 of the gas pipeline 20 communicates with the space inside the central pipe 35 of the static air chamber, that is, it can communicate with the static air chamber air outlet holes 17.

[0137] The gas pipeline 20 passes forward through the central pipe 31 of the static sand chamber, the moving sand chamber pipe 9 and the cutter head hole 3. A plurality of air outlet holes 21 are provided on the front circular edge of the gas pipeline 20.

[0138] The air outlet holes 21 are connected to the air inlet holes of the water switch 2 (valve, this is a known technology). When air is introduced, the waterway is opened so that water enters the corresponding front main cutting gun or edge main cutting gun. On the contrary, the waterway is closed.

[0139] The static air chamber 15 is arranged on the frame and is supplied with gas from the air inlet 16 of the static air chamber by the air pump 40, and the air pressure is 0.6 - 0.8 MPa.

[0140] The gas comes out from the static air chamber air outlet holes 17 and enters the gas pipeline sandwich 22 of the gas pipeline 20, and is output forward from a plurality of air outlet holes 21 on the edge.

[0141] The moving air chamber cover plate 19 at the rear edge of the gas pipeline 20 is fixed on the moving sand chamber flange 13 to realize gas distribution during synchronous rotation.

[0142] Furthermore, for firm assembly, a circular boss is provided on the edge of the moving air chamber cover plate 19, and a corresponding groove is provided on the right annular plate 33 of the static air chamber for clamping.

[0143] The central hole of the left annular plate 32 of the static air chamber is blocked by the middle static water chamber 6 passing through it, and there is no air leakage. The central hole of the inner layer of the gas transmission pipe sandwich layer 22 is also blocked by the middle static water chamber 6, and an air chamber sealing ring is provided.

[0144] If this air supply and air distribution device is used alone, the central hole of the left annular plate 32 of the static air chamber can be blocked by the first plug plate, and the central hole of the inner layer of the gas transmission pipe sandwich layer 22 can be blocked by the second plug plate, and the corresponding equipment can be used to realize rotary air supply.

[0145] Ultra-high pressure water passes through the integral cutter head central rotary mechanism of the tunnel boring machine: including a static water chamber 23 and an ultra-high pressure water distributor 25 of the tunnel boring machine.

[0146] The inlet part of the static water chamber 23 is provided behind the static air chamber 15, and a plurality of (three) static water chamber water inlets 24 are provided.

[0147] The cylindrical middle static water chamber 6 of the static water chamber 23 extends forward through the static air chamber 15, and at the same time seals the central hole of the left annular plate 32 of the static air chamber 15, and there is no air leakage to the outside.

[0148] When the cylindrical middle static water chamber 6 of the static water chamber 23 penetrates into the central hole of the rear edge of the gas transmission pipe sandwich layer 22, an air chamber sealing ring can be set to seal the gas.

[0149] The front end of the cylindrical middle static water chamber 6 of the static water chamber 23 penetrates through the gas transmission pipe 20.

[0150] Furthermore, the front end of the middle static water chamber 6 is rotationally connected to the water inlet of the ultra-high pressure water distributor 25 of the tunnel boring machine, and a water sealing ring is provided.

[0151] The inlet part of the static water chamber 23 is arranged on the frame and is supplied with water by a water pump 39, and the water pressure is 410 Mpa.

[0152] Furthermore, in order to strengthen the structure, a circular groove is provided at the front end of the middle static water chamber 6 and is correspondingly assembled with the boss of the water inlet of the ultra-high pressure water distributor 25 of the tunnel boring machine.

[0153] The ultra-high pressure water distributor 25 of the tunnel boring machine is cylindrical in shape, and an axial blind hole is opened inside as an equalizing chamber body 26, and the inlet of the equalizing chamber body 26 is the water inlet of the ultra-high pressure water distributor 25 of the tunnel boring machine.

[0154] On the cylindrical part of the ultra-high pressure water distributor 25 of the tunnel boring machine, a plurality of water distribution holes 27 are opened to connect the distribution water pipes 37 and communicate with the equalizing chamber body 26.

[0155] The ultra-high pressure water distributor 25 of the tunnel boring machine is fixedly connected to the cutter head 1 in the cutter head hole 3.

[0156] There are 36 water distribution holes 27 in total, divided into two rows with 18 in each row, and are arranged in the radial direction along the opposite sides.

[0157] Alternatively, the water distribution holes 27 can also be opened in front of the cylindrical part of the ultra-high pressure water distributor 25 of the tunnel boring machine.

[0158] Each water distribution hole 27 is independently set, does not affect the flow rate of each other, reduces energy loss, and can adapt to ultra-high pressure water flow.

[0159] Water enters from the water inlet 24 of the static water storage bin, passes through the axial hole of the middle static water storage bin 6, enters the pressure equalizing bin body 26 of the ultra-high pressure water distributor 25 of the tunnel boring machine, and flows out from the water distribution holes 27 and the distribution water pipe 37. The cutter head 1 drives the ultra-high pressure water distributor 25 of the tunnel boring machine to rotate and distribute water.

[0160] Behind the cutter head 1, there is (a cutter head rotation power device, which is a known technology), for example, a driven gear 36 is set, meshed with the driving gear on the motor shaft, and the motor is supported on the frame.

[0161] Multiple cutters for tunnel boring machines and abrasive water jet composite front main cutting guns 14 (front main cutting guns) are arranged in the diameter direction of the cutter head 1.

[0162] Multiple (three) cutters for tunnel boring machines and abrasive water jet composite edge main cutting guns 38 (edge main cutting guns) are arranged outward at the edge of the cutter head 1.

[0163] The front main cutting gun: includes a front main cutting gun water inlet pipe 41, a front main cutting gun sand inlet pipe 42, a front main cutting gun cutter housing 43, and a front main cutting gun sand pipe nozzle 44.

[0164] The outlet of the front main cutting gun water inlet pipe 41 and the outlet of the front main cutting gun sand inlet pipe 42 are connected together and then jointly connected to the inlet of the front main cutting gun sand pipe nozzle 44.

[0165] The front main cutting gun water inlet pipe 41, the front main cutting gun sand inlet pipe 42, and the front main cutting gun sand pipe nozzle 44 are arranged in the front main cutting gun cutter housing 43 and filled with a front main cutting gun resin layer 45.

[0166] The inlet of the front main cutting gun water inlet pipe 41 and the inlet of the front main cutting gun sand inlet pipe 42 are arranged outside the front main cutting gun cutter housing 43.

[0167] Specifically: it includes a sealing joint a51, a water inlet pipe a52, a sealing joint b53, and a sealing joint c55.

[0168] The sealing joint a51 is screwed into one end hole of the rotary joint a54 and a first sealing ring is set.

[0169] The sealed joint a51 and the water inlet pipe a52 are fixedly connected.

[0170] The other end of the adapter a54 is connected to the water inlet of the sand pipe nozzle 44 of the main front cutting gun and is fixedly connected through the sealed joint b53.

[0171] The outlet of the sand inlet pipe 42 of the main front cutting gun is connected to the sand inlet of the sand pipe nozzle 44 of the main front cutting gun.

[0172] The middle part of the sand pipe nozzle 44 of the main front cutting gun is divided into two sections and is connected through the sealed joint c55.

[0173] The edge main cutting gun includes an edge main cutting gun water inlet pipe 46, an edge main cutting gun sand inlet pipe 47, an edge main cutting gun tool housing 48 and an edge main cutting gun sand pipe nozzle 49.

[0174] After the outlet of the edge main cutting gun water inlet pipe 46 and the outlet of the edge main cutting gun sand inlet pipe 47 are connected, they are jointly connected to the inlet of the edge main cutting gun sand pipe nozzle 49.

[0175] The edge main cutting gun water inlet pipe 46, the edge main cutting gun sand inlet pipe 47 and the edge main cutting gun sand pipe nozzle 49 are arranged inside the edge main cutting gun tool housing 48 and are filled with the edge main cutting gun resin layer 50.

[0176] The inlets of the edge main cutting gun water inlet pipe 46 and the edge main cutting gun sand inlet pipe 47 are arranged outside the edge main cutting gun tool housing 48.

[0177] Both the edge main cutting gun water inlet pipe 46 and the edge main cutting gun sand inlet pipe 47 are bent, and the obtuse angle Z is 110° - 160°, and there is also a right-angle bend.

[0178] Specifically, it can be 110°, 160° or 135°.

[0179] The right-angle tool holder 61 of the edge main cutting gun is arranged parallel to the axis of the cutter head 1.

[0180] Specifically, it includes a sealed joint d56, a water inlet pipe b57, a sealed joint e58 and a sealed joint f59.

[0181] The sealed joint d56 is screwed into the hole at one end of the adapter b60 and a second sealing ring is provided.

[0182] The sealed joint d56 and the water inlet pipe b57 are fixedly connected.

[0183] The other end of the adapter b60 is connected to the water inlet of the edge main cutting gun sand pipe nozzle 49 and is fixedly connected through the sealed joint e58.

[0184] The outlet of the edge main cutting gun sand inlet pipe 47 is connected to the sand inlet of the edge main cutting gun sand pipe nozzle 49.

[0185] The sand pipe nozzle 49 of the edge main cutting gun has two sections in the middle and is connected by a sealing joint f59.

[0186] The adapter b60 is set as an obtuse angle bend.

[0187] The main cutting guns with two kinds of metal shells (straight and bent, metal shell cutter and water jet) are both fixed on the cutter head 1.

[0188] The aforementioned rotating connection parts can be provided with rotating fittings and seals according to the conventional technical means in the art, such as sealing grooves, sealing rings and sealing bearings, etc.

[0189] The sand hopper, the water pump 39 and the air pump 40 can also be arranged on the frame.

Claims

1. The complete set of equipment for a tunnel boring machine to load abrasive water jet for auxiliary rock breaking and pile cutting, including ultra-high pressure water, abrasive, and gas passing through the integral cutter head central rotation system of the tunnel boring machine and multiple cutters for the tunnel boring machine and the composite front main cutting gun (14) of the abrasive water jet; characterized in that: On the cutter head (1) of the integral cutter head central rotation system of the tunnel boring machine, multiple cutters for the tunnel boring machine and the composite front main cutting gun (14) of the abrasive water jet are provided, forming a complete set of equipment for the tunnel boring machine to load abrasive water jet; At the edge of the cutter head (1), there is a composite edge main cutting gun (38) of the cutter for the tunnel boring machine and the abrasive water jet, including an edge main cutting gun water inlet pipe (46), an edge main cutting gun sand inlet pipe (47), an edge main cutting gun cutter housing (48), and an edge main cutting gun sand pipe nozzle (49); The outlet of the edge main cutting gun water inlet pipe (46) and the outlet of the edge main cutting gun sand inlet pipe (47) are connected together and then jointly connected to the inlet of the edge main cutting gun sand pipe nozzle (49); Outside the edge main cutting gun water inlet pipe (46), the edge main cutting gun sand inlet pipe (47), and the edge main cutting gun sand pipe nozzle (49), there is an edge main cutting gun cutter housing (48); Both the edge main cutting gun water inlet pipe (46) and the edge main cutting gun sand inlet pipe (47) are bent, with a bending obtuse angle Z; The sand inlet of the composite edge main cutting gun (38) of the cutter for the tunnel boring machine and the abrasive water jet is connected to the corresponding cutter head sand channel (12); The water inlet of the composite edge main cutting gun (38) of the cutter for the tunnel boring machine and the abrasive water jet is connected to the outlet of the corresponding water switch (2), and the inlet of the water switch (2) is connected to the corresponding distribution water pipe (37); The inside of the edge main cutting gun cutter housing (48) is filled with an edge main cutting gun resin layer (50); The bending obtuse angle Z of the edge main cutting gun water inlet pipe (46) and the edge main cutting gun sand inlet pipe (47) is 110° - 160°.

2. The complete set of equipment for a tunnel boring machine to load abrasive water jet for auxiliary rock breaking and pile cutting according to claim 1, characterized in that: Ultra-high pressure water, abrasive, and gas pass through the integral cutter head central rotation system of the tunnel boring machine, including abrasive conveyed through the integral cutter head central rotation mechanism of the tunnel boring machine, compressed air conveyed through the integral cutter head central rotation mechanism of the tunnel boring machine, and ultra-high pressure water conveyed through the integral cutter head central rotation mechanism of the tunnel boring machine; Behind the cutter head (1), there is a static sand bin (4), and a static sand bin sand inlet (5) is opened on the static sand bin outer shell (30); The abrasive conveyed through the integral cutter head central rotation mechanism of the tunnel boring machine: includes a static sand bin (4) and a moving sand bin (8); The static sand bin (4) includes a static sand bin left annular plate (28), a static sand bin right annular plate (29), a static sand bin outer shell (30), and a static sand bin central pipe (31); Both ends of the static sand bin outer shell (30) are respectively connected to the outer circle of the static sand bin left annular plate (28) and the outer circle of the static sand bin right annular plate (29); Both ends of the static sand bin central pipe (31) are respectively connected to the inner circle of the static sand bin left annular plate (28) and the inner circle of the static sand bin right annular plate (29); An annular static sand bin opening (7) is formed in the right annular plate (29) of the static sand bin, which is located outside the outer ring of the central pipe (31) of the static sand bin. A moving sand bin (8) is arranged inside the static sand bin (4). The middle part of the moving sand bin (8) is a moving sand bin pipe (9), and the moving sand bin pipe (9) is arranged inside the central pipe (31) of the static sand bin. The front part of the moving sand bin (8) is a sand dividing disc (10) fixed to the moving sand bin pipe (9). The front end port of the moving sand bin pipe (9) is fixed in the central hole of the sand dividing disc (10), and the sand dividing disc (10) is rotatably connected corresponding to the static sand bin opening (7). A plurality of sand dividing pipes (11) are arranged on the circumference of the sand dividing disc (10), and the sand dividing pipes (11) are fixedly communicated with a plurality of cutter head sand channels (12) formed on the front cutter head (1). A moving sand bin flange (13) is arranged behind the moving sand bin pipe (9) and extends backward out of the static sand bin (4). The outlet of the sand hopper is connected to the static sand bin sand inlet (5). In front of the cutter head (1), there is a composite front main cutting gun (14) for tunneling machine with cutter and abrasive water jet. The sand inlet of the composite front main cutting gun (14) for tunneling machine with cutter and abrasive water jet is connected to the corresponding cutter head sand channel (12). The water inlet of the composite front main cutting gun (14) for tunneling machine with cutter and abrasive water jet is connected to the water outlet of the corresponding water switch (2), and the water inlet of the water switch (2) is connected to the corresponding distribution water pipe (37). Compressed air passes through the integral cutter head central rotary mechanism of the tunneling machine, including a static air bin (15) and a moving air bin (18). A static air bin (15) is arranged behind the static sand bin (4). The static air bin (15) is provided with a static air bin air inlet (16) connected to the outlet of an air pump (40). The static air bin (15) includes a left annular plate (32) of the static air bin, a right annular plate (33) of the static air bin, a static air bin housing (34) and a central pipe (35) of the static air bin. The area of the central hole of the right annular plate (33) of the static air bin is larger than the area of the central hole of the left annular plate (32) of the static air bin, and the shape of the hole of the central pipe (35) of the static air bin is the same as the shape of the central hole of the right annular plate (33) of the static air bin. Both ends of the static air bin housing (34) are respectively connected to the outer ring of the left annular plate (32) of the static air bin and the outer ring of the right annular plate (33) of the static air bin. One end of the central pipe (35) of the static air bin is connected to the central hole of the right annular plate (33) of the static air bin, and the other end is connected to the left annular plate (32) of the static air bin. A plurality of static air bin air outlet holes (17) are formed in the central pipe (35) of the static air bin. The circular moving air bin cover plate (19) of the moving air bin (18) is arranged in front of the right annular plate (33) of the static air bin and is rotatably connected therebetween. The moving air bin cover plate (19) is connected forward to the outer layer of the gas transmission pipe sandwich (22) of the gas transmission pipe (20). The gas transmission pipe sandwich (22) of the gas transmission pipe (20) is communicated with the space inside the central pipe (35) of the static air bin. The gas transmission pipe (20) passes forward through the central pipe (31) of the static sand bin, the moving sand bin pipe (9) and the cutter head hole (3), and a plurality of air outlet holes (21) are formed at the front end edge of the gas transmission pipe (20). Ultra-high pressure water passes through the integral cutter head central rotary mechanism of the tunneling machine, including a static water bin (23) and an ultra-high pressure water distributor (25) of the tunneling machine. Behind the air - static chamber (15) is provided with the inlet part of the static - water chamber (23), and a static - water chamber water inlet (24) is opened to connect with the outlet of the water pump (39); The middle static - water chamber (6) extends forward, passes through the air - static chamber (15), and at the same time seals the central hole of the left - hand annular plate (32) of the air - static chamber (15); The middle static - water chamber (6) penetrates into the central hole of the rear edge of the gas - transmission pipe sandwich layer (22) and is provided with a gas - chamber sealing ring; The front end of the middle static - water chamber (6) passes through the gas - transmission pipe (20); The front end of the middle static - water chamber (6) is rotatably connected with the water inlet of the ultra - high - pressure water distributor (25) of the tunnel boring machine; The ultra - high - pressure water distributor (25) of the tunnel boring machine is provided with an axial blind hole as the pressure - equalizing chamber body (26), and the inlet of the pressure - equalizing chamber body (26) is the water inlet of the ultra - high - pressure water distributor (25) of the tunnel boring machine; On the cylindrical part of the ultra - high - pressure water distributor (25) of the tunnel boring machine, a plurality of water distribution holes (27) are opened to connect with the distribution water pipes (37) and communicate with the pressure - equalizing chamber body (26); The ultra - high - pressure water distributor (25) of the tunnel boring machine is fixedly connected with the cutter head (1); Tunnel boring machine cutter and abrasive water jet composite front - main cutting gun (14): including a front - main cutting gun water inlet pipe (41), a front - main cutting gun sand inlet pipe (42), a front - main cutting gun cutter housing (43) and a front - main cutting gun sand - pipe nozzle (44); The outlet of the front - main cutting gun water inlet pipe (41) and the outlet of the front - main cutting gun sand inlet pipe (42) are connected together and then jointly connected to the inlet of the front - main cutting gun sand - pipe nozzle (44); The front - main cutting gun water inlet pipe (41), the front - main cutting gun sand inlet pipe (42) and the front - main cutting gun sand - pipe nozzle (44) are externally provided with a front - main cutting gun cutter housing (43).

3. The tunnel boring machine loading abrasive water jet assisted rock breaking and pile cutting complete equipment according to claim 2, characterized in that: A plurality of tunnel boring machine cutters and abrasive water jet composite front - main cutting guns (14) are arranged in the diameter direction of the cutter head (1).

4. The tunnel boring machine loading abrasive water jet assisted rock breaking and pile cutting complete equipment according to claim 2, characterized in that: The front - main cutting gun cutter housing (43) is filled with a front - main cutting gun resin layer (45).

5. The tunnel boring machine loading abrasive water jet assisted rock breaking and pile cutting complete equipment according to claim 1, characterized in that: The obtuse angle Z is 110°, 160° or 135°.

6. The tunnel boring machine loading abrasive water jet assisted rock breaking and pile cutting complete equipment according to claim 2, characterized in that: A plurality of water distribution holes (27) are divided into two rows and are arranged in the radial direction on the opposite sides of the cylinder of the ultra - high - pressure water distributor (25) of the tunnel boring machine.

7. The tunnel boring machine loading abrasive water jet assisted rock breaking and pile cutting complete equipment according to claim 2, characterized in that: The static - sand bin sand inlet (5) is located above the static - sand bin housing (30).

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