CN113898357A

CN113898357A - Shield machine

Info

Publication number: CN113898357A
Application number: CN202111387653.6A
Authority: CN
Inventors: 朱国庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-01-07

Abstract

The invention discloses a shield machine, belonging to the field of tunneling machine equipment, comprising a cutter head and a host machine structure, wherein the cutter head is fixedly assembled at one end of the host machine structure, an inner wall of one side of the host machine structure, which is close to the cutter head, is fixedly assembled with an inner fixed framework, the bottom of the inner wall of one side of the host machine structure, which is close to the cutter head, is fixedly provided with a crushing mechanism, a water mist dust removal component is fixedly assembled at the upper part of the crushing mechanism on the inner wall of the host machine structure, a conveyer is fixedly installed in the host machine structure in a penetrating way, a duct piece assembling machine is fixedly assembled at one end of the host machine structure, which is far away from the cutter head, the problem that stubborn impurities are clamped in a slot cutter gap and the problem that dust flies is solved, the equipment can save the consumption of electric power resources, has the characteristics of energy conservation and emission reduction, and has the crushing pretreatment work before the soil residue transportation, the transportation of the transporter is convenient.

Description

Shield machine

Technical Field

The invention relates to the field of heading machine equipment, in particular to a shield machine.

Background

The shield machine is a tunnel boring machine using a shield method, the shield construction method is that the tunnel boring machine constructs (lays) a 'shield' (referring to a supporting segment) of a tunnel while boring, and is different from an open construction method, the shield machine is generally divided into a hand-drive shield, a squeezing shield, a semi-mechanical shield (local air pressure and global air pressure) and a mechanical shield (an open cutting shield, an air pressure shield, a muddy water pressurizing shield, a soil pressure balance shield, a mixed shield and a special shield) according to the working principle;

however, the existing shield machine has the following defects: in the existing shield machine, particles with high hardness in soil are clamped into gaps of the slot cutters in the tunneling work, so that the normal use of the slot cutters is influenced; in addition, before the soil residues are transported, the work of crushing pretreatment is not performed, so that in the process of soil residue transportation, objects with large particles can abrade equipment, the blockage situation is likely to occur, and the service life of the equipment is seriously shortened.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a shield machine which can solve the problems that stubborn impurities are clamped in a slot cutter gap and dust flies, can save the consumption of power resources, has the characteristics of energy conservation and emission reduction, and has the crushing pretreatment work before the soil residue transportation and is convenient for the transportation of a transporter.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A shield machine comprises a cutter head and a main machine structure;

the cutter head is fixedly assembled at one end of the main machine structure, an inner fixed framework is fixedly assembled on the inner wall of one side, close to the cutter head, of the main machine structure, a crushing mechanism is fixedly arranged at the bottom of the inner wall of one side, close to the cutter head, of the main machine structure, and a water mist dust removal assembly is fixedly assembled on the inner wall of the main machine structure, which is positioned above the crushing mechanism;

the inside fixed mounting that runs through of host computer structure has the conveyer, the host computer structure deviates from the fixed equipment of one end of blade disc has the section of jurisdiction mounting plate, the section of jurisdiction mounting plate deviates from one side of host computer structure is fixed equipment in proper order has a section of connecting machine storehouse and two sections of connecting machine storehouses.

Further, the blade disc still includes the disk body, the fixed through-hole that runs through the disk body of seting up of disk body surface edge equidistance, the equal equidistance of one side that the disk body outer wall is located the through-hole is arranged and is had the groove sword, disk body outer wall equidistance is rotated and is installed the auxiliary wheel, the fixed whitewashing mouth that is provided with of disk body outer wall equidistance.

Further, the inside clearance that is located adjacent slotting tool of disk body is all fixed and has been seted up the inner tube, just the inner tube all runs through the disk body, the sliding equipment of disk body medial surface equidistance has interior movable rod, the fixed welding of interior movable rod lateral wall equidistance has interior ejector pin, and is adjacent the interval equidistance of interior ejector pin is adjacent the interval of inner tube, just interior ejector pin activity is inserted the inside of inner tube, another lateral wall both ends of interior movable rod are all fixed and are provided with the guide groove frame.

Further, the host computer structure still includes the stay tube, the main bearing is installed to the inside rotation in center of stay tube, the inboard transmission of main bearing is assembled there is the main drive, the outer wall equidistance fixed weld of main bearing has the connection steelframe, the end of connecting the steelframe with the fixed welding of disk body, the one end fixed surface cover of connecting the steelframe is equipped with the ring channel frame.

Further, the stay tube is close to the fixed incision ring that is provided with of one end outer wall of disk body, the personnel cabin has been fixed to have seted up on the inside top of stay tube, the fixed equipment of marginal inside equidistance of stay tube has the propulsion jar.

Further, interior fixed framework still includes annular steelframe, two annular steelframe is the box-like equipment of cover, and two annular steelframes pass through one side welded steel sheet fixed connection, the fixed cambered surface lug that is provided with of opposite side equidistance of annular steelframe, the equal fixed welding of lateral wall of steel sheet has the installation steelframe with the fixed welding of stay tube, guide slot frame sliding sleeve is established annular steelframe's surface.

Further, broken mechanism still includes the stone room that falls, the stone room that falls is fixed to be set up the outer wall bottom of stay tube, the both sides of falling the stone room all slide the equipment and have the slip channel-section steel, the inside equidistance of slip channel-section steel is fixed to be provided with and is led the tooth opposite side the end and be located the equal fixed welding in inside of the stone room that falls has crushing harrow.

Further, the equal fixed mounting in the inside bottom both sides of supporting tube has the three-phase motor, the equal fixed mounting of output shaft of three-phase motor has drive gear, drive gear with the guide tooth meshes mutually, it is located to fall stone room both ends the equal fixed welding of upper surface of drive gear has the arc backplate.

Further, the water smoke dust removal subassembly still includes the water injector, two the equal fixed mounting of water injector in the upper surface of falling the stone room, and with the stay tube inner wall is fixed connection, water injector one end lateral wall rotates and installs the drive wheel, and the drive wheel all imbeds in the recess that the annular frame surface was seted up, the water injector rotates and installs the bent axle with drive wheel fixed connection, the bent axle end all rotates and installs the deflection pole, the end rotation of deflection pole is connected with the piston ware, water injector opposite side outer wall both sides fixedly connected with outlet pipe respectively and the pipe that absorbs water.

Furthermore, two the outlet pipe communicates with each other through the top water piping connection that sets up, and the surperficial equidistance fixedly connected with atomizer of top water pipe, two the pipe that absorbs water communicates with each other through the main water piping connection that sets up.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme, the guide slot frame will slide on the surface of annular steelframe, and when the guide slot frame slided the position of cambered surface lug, the interior movable rod that corresponds will be at the inboard rectilinear slide of disk body, and the inner tube will be stretched out to the one end of interior ejector pin, and then ejecting with the impurity in the adjacent groove sword clearance to the solution has the problem of stubborn impurity card in the groove sword clearance, guarantees the normal use of groove sword.

(2) This scheme, at the rotatory in-process of disk body, the drive wheel is together rotatory with the recess on laminating annular frame surface, and at this moment, the water injector is inside constantly to form positive negative pressure to in accessible water injector transports the water in the water tank to the top water pipe, finally by atomizer blowout, spun water smoke alright realize the effect of removing dust, consequently solved the problem that the dust flies upward, provide the inside good operational environment of equipment.

(3) In the scheme, the moving process of the inner ejector rod and the water mist spraying process do not use other power equipment, kinetic energy generated when the disc body rotates can be utilized, power resource consumption is greatly saved, and the device has the characteristics of energy conservation and emission reduction.

(4) According to the scheme, the soil residues can automatically fall into the rock falling chamber after passing through the through hole, the two crushing rakes can be continuously inserted and separated, when the two crushing rakes are inserted, the soil residues with larger particles can be crushed, pretreatment work before soil residue transportation is realized, large-particle soil residues are crushed into smaller particles, transportation of a transporter is facilitated, the condition that the inside of the transporter is blocked is avoided, and meanwhile, abrasion of the soil residues to equipment is reduced; in addition, the arc-shaped guard plate has the effect of protecting the driving gear, and soil residues are prevented from falling into the gear teeth of the driving gear.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the cutter head and main frame structure of the present invention;

FIG. 3 is a schematic view of a portion of the enlarged structure at A in FIG. 2;

FIG. 4 is a rear view of the cutter head of the present invention;

FIG. 5 is a schematic structural view of the inner movable bar of the present invention;

FIG. 6 is an exploded view of the host architecture and the default architecture of the present invention;

FIG. 7 is a side cross-sectional structural view of the host structure of the present invention;

FIG. 8 is a schematic view of the crushing mechanism of the present invention;

FIG. 9 is a schematic structural view of the water mist dust removing assembly of the present invention;

fig. 10 is a schematic sectional view showing the structure of the water injector of the present invention.

The reference numbers in the figures illustrate:

1. a cutter head; 101. a tray body; 102. a through hole; 103. a slotting cutter; 104. an inner tube; 105. an auxiliary wheel; 106. a guniting port; 107. an inner movable rod; 108. an inner ejector rod; 109. a guide slot frame; 2. a host structure; 201. supporting a tube; 202. a notch ring; 203. a personnel cabin; 204. a main bearing; 205. main driving; 206. a propulsion cylinder; 207. connecting a steel frame; 208. a ring groove frame; 3. one section is connected with the machine cabin; 4. the second section is connected with the machine cabin; 5. a segment mounting machine; 6. an internal setting framework; 601. installing a steel frame; 602. a steel plate; 603. an annular steel frame; 604. a cambered surface bump; 7. a crushing mechanism; 701. a rock falling chamber; 702. an arc-shaped guard plate; 703. sliding channel steel; 704. a leading tooth; 705. a drive gear; 706. a grinding rake; 8. a water mist dust removal component; 801. a water injector; 802. a drive wheel; 803. a water outlet pipe; 804. a water jacking pipe; 805. an atomizing spray head; 806. a suction pipe; 807. a main water pipe; 808. a crankshaft; 809. a deflection bar; 810. a piston device; 9. a transporter.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Example 1:

referring to fig. 1-7, a shield tunneling machine includes a cutter head 1 and a main machine structure 2;

referring to fig. 2, cutter head 1 is fixed at one end of host structure 2, the internal fixed framework 6 is fixed to be assembled to one side inner wall of host structure 2 near cutter head 1, the fixed crushing mechanism 7 that is provided with in one side inner wall bottom that host structure 2 is near cutter head 1, the fixed equipment of water smoke dust removal subassembly 8 has been located the top of crushing mechanism 7 in the inner wall of host structure 2, host structure 2 is used for controlling cutter head 1 to rotate, accomplish the work of excavating the tunnel, crushing mechanism 7 is used for smashing and collecting the soil sediment, water smoke dust removal subassembly 8 then is used for realizing the work of removing dust.

Referring to fig. 1, a conveyer 9 is fixedly installed inside the main machine structure 2 in a penetrating mode, a segment installing machine 5 is fixedly assembled at one end, deviating from the cutter head 1, of the main machine structure 2, and a connecting machine cabin 3 and a connecting machine cabin 4 are sequentially and fixedly assembled on one side, deviating from the main machine structure 2, of the segment installing machine 5.

Referring to fig. 2, the cutterhead 1 further comprises a disc body 101, through holes 102 penetrating through the disc body 101 are fixedly formed in the edge of the surface of the disc body 101 at equal intervals, slot cutters 103 are arranged on one side, located at the through holes 102, of the outer wall of the disc body 101 at equal intervals, auxiliary wheels 105 are rotatably mounted on the outer wall of the disc body 101 at equal intervals, slurry spraying ports 106 are fixedly formed in the outer wall of the disc body 101 at equal intervals, when the cutterhead 1 rotates, the slot cutters 103 on the surface of the disc body 101 complete excavation, excavated soil and slag enter the disc body 101 through the through holes 102, at the moment, the auxiliary wheels 105 are used for assisting the rotation of the disc body 101, and foam sprayed by the slurry spraying ports 106 is used for softening soil.

Referring to fig. 3-5, inner tubes 104 are fixedly arranged in gaps between adjacent slotting tools 103 inside the tray body 101, the inner tubes 104 all penetrate through the tray body 101, inner movable rods 107 are slidably assembled on the inner side surface of the tray body 101 at equal intervals, inner push rods 108 are fixedly welded on the side wall of each inner movable rod 107 at equal intervals, the distance between the adjacent inner push rods 108 is equal to the distance between the adjacent inner tubes 104, the inner push rods 108 are movably inserted into the inner tubes 104, and guide groove frames 109 are fixedly arranged at two ends of the other side wall of each inner movable rod 107.

Referring to fig. 7, the host structure 2 further includes a supporting tube 201, a main bearing 204 is rotatably installed inside the center of the supporting tube 201, a main drive 205 is assembled inside the main bearing 204 in a transmission manner, a connecting steel frame 207 is fixedly welded to the outer wall of the main bearing 204 at equal intervals, the tail end of the connecting steel frame 207 is fixedly welded to the tray body 101, a ring groove frame 208 is fixedly sleeved on the surface of one end of the connecting steel frame 207, the main drive 205 drives the main bearing 204 to rotate, so that the tray body 101 is driven to rotate by the connecting steel frame 207, a notch ring 202 is fixedly arranged on the outer wall of one end, close to the tray body 101, of the supporting tube 201, a personnel cabin 203 is fixedly arranged at the top end inside the supporting tube 201, a propelling cylinder 206 is fixedly assembled inside the edge of the supporting tube 201 at equal intervals, wherein the personnel cabin 203 is used for providing a space for a worker to operate, and the propelling cylinder 206 is used for completing the installation work of a tunnel segment installing machine in cooperation with a segment 5.

Referring to fig. 6, the inner stator frame 6 further includes an annular steel frame 603, the two annular steel frames 603 are assembled in a sleeving manner, the two annular steel frames 603 are fixedly connected through a steel plate 602 welded on one side, arc bumps 604 are fixedly arranged on the other side of the annular steel frame 603 at equal intervals, an installation steel frame 601 fixedly welded with the support tube 201 is fixedly welded on the side wall of the steel plate 602, the guide groove frame 109 is slidably sleeved on the surface of the annular steel frame 603, when the cutter head 1 rotates, because the two annular steel frames 603 are fixedly installed, the guide groove frame 109 slides on the surface of the annular steel frame 603, and when the guide groove frame 109 slides to the position of the arc bumps 604, the corresponding inner movable rod 107 linearly slides on the inner side of the disk body 101, and then one end of the inner push rod 108 extends out of the inner tube 104, so as to push out impurities in the gap between the adjacent slot cutters 103.

When the main machine structure 2 is used for controlling the cutter head 1 to rotate, the main drive 205 drives the main bearing 204 to rotate, so that the connecting steel frame 207 drives the disk body 101 to rotate, when the cutter head 1 rotates, the groove cutters 103 on the surface of the disk body 101 complete excavation, excavated soil and slag enter the disk body 101 through the through holes 102, at the moment, the auxiliary wheels 105 are used for assisting the rotation of the disk body 101, and foam sprayed by the slurry spraying openings 106 is used for softening soil;

when the cutter head 1 rotates, because the two annular steel frames 603 are fixedly installed, the guide groove frame 109 slides on the surface of the annular steel frame 603, and when the guide groove frame 109 slides to the position of the arc-shaped bump 604, the corresponding inner movable rod 107 linearly slides on the inner side of the cutter body 101 according to the arc shape of the arc-shaped bump 604, and then one end of the inner ejector rod 108 extends out of the inner pipe 104, so that impurities in the gap between the adjacent groove cutters 103 are ejected out, thereby solving the problem that stubborn impurities are clamped in the gap between the groove cutters 103 and ensuring the normal use of the groove cutters 103; moreover, the process of ejecting the impurities can be realized by utilizing the kinetic energy of the cutter head 1 during rotation, and other electric equipment is not needed.

Example 2:

referring to fig. 6 and 8, a shield machine includes a cutter head 1 and a main machine structure 2;

referring to fig. 6, the crushing mechanism 7 further includes a rock falling chamber 701, the rock falling chamber 701 is fixedly arranged at the bottom end of the outer wall of the support pipe 201, sliding channel steel 703 is assembled on two sides of the rock falling chamber 701 in a sliding mode, guide teeth 704 are fixedly arranged in the sliding channel steel 703 at equal intervals, crushing rakes 706 are fixedly welded in the rock falling chamber 701 at the tail ends of the two opposite sides of the guide teeth 704, and in the excavating process, soil and slag enter the inner side of the disc body 101 after passing through the through hole 102 and finally automatically fall into the rock falling chamber 701.

Referring to fig. 8, both sides of the bottom end inside the supporting tube 201 are fixedly provided with a three-phase motor, an output shaft of the three-phase motor is fixedly provided with a driving gear 705, the driving gear 705 is meshed with a guide tooth 704, arc-shaped guard plates 702 are fixedly welded on the upper surfaces of the two ends of the rock falling chamber 701, which are located on the driving gear 705, in the operation of the device, the three-phase motor is started to drive the driving gear 705 to intermittently and reciprocally rotate, at the moment, the driving gear 705 is meshed with the guide tooth 704 to drive the sliding channel steel 703 on the two sides to constantly slide in a reciprocating manner, so that the two crushing rakes 706 are constantly plugged and then separated, and when the two crushing rakes 706 are plugged, soil slag with larger crushed particles can be clamped.

When the device is used, in the excavating process, soil and slag enter the inner side of the disc body 101 after passing through the through hole 102 and finally automatically fall into the rock falling chamber 701, and in the working process of the device, the three-phase motor is started to drive the driving gear 705 to intermittently and reciprocally rotate, at the moment, the driving gear 705 is meshed with the guide tooth 704 to further drive the sliding channel steel 703 on the two sides to constantly and reciprocally slide, so that the two crushing rakes 706 can be constantly inserted and separated, when the two crushing rakes 706 are inserted, the soil and slag with larger particles can be crushed, the pretreatment work before the soil and slag transportation is realized, the large-particle soil and slag can be crushed into smaller particles, the transportation of the transporter 9 is facilitated, the blocking condition in the transporter 9 is avoided, and the abrasion of the soil and slag on the device is reduced; in addition, the arc-shaped guard plate 702 has the effect of protecting the driving gear 705 and preventing soil from falling into the gear teeth of the driving gear 705.

Example 3:

referring to fig. 9-10, a shield tunneling machine includes a cutter head 1 and a main machine structure 2;

referring to fig. 10, the water mist dust removing assembly 8 further includes water injectors 801, two water injectors 801 are fixedly installed on the upper surface of the rock falling chamber 701 and fixedly connected to the inner wall of the support pipe 201, a driving wheel 802 is rotatably installed on the side wall of one end of each water injector 801, the driving wheel 802 is embedded into a groove formed in the outer surface of the ring groove frame 208, a crankshaft 808 fixedly connected to the driving wheel 802 is rotatably installed on each water injector 801, a deflection rod 809 is rotatably installed at the end of each crankshaft 808, a piston 810 is rotatably connected to the end of each deflection rod 809, a water outlet pipe 803 and a water suction pipe 806 are respectively and fixedly connected to the two sides of the outer wall of the other side of each water injector 801, during the rotation of the disc body 101, the connection 207 drives the ring groove frame 208 to rotate together, the driving wheel 802 drives the grooves attached to the surface of the ring groove frame 208 to rotate together, at this time, the driving wheel 802 drives the crankshaft 808 to rotate inside the water injectors 801, and finally, the piston 810 is driven by the deflection rods 809 to linearly move back and forth, thereby continuously generating positive and negative pressure inside the water injector 801.

Referring to fig. 9, two water outlet pipes 803 are connected and communicated through a top water pipe 804, the surface of the top water pipe 804 is fixedly connected with an atomizing nozzle 805 at equal intervals, two water suction pipes 806 are connected and communicated through a main water pipe 807, the tail end of the main water pipe 807 is connected with a water tank, water in the water tank is transported to the top water pipe 804 through a water injector 801, and finally sprayed out through the atomizing nozzle 805, and the dust removal effect can be realized through sprayed water mist.

When in use: in the process of rotating the disc body 101, the connecting steel frame 207 drives the ring groove frame 208 to rotate together, at the moment, the driving wheel 802 drives the groove attached to the surface of the ring groove frame 208 to rotate together, at the moment, the driving wheel 802 drives the crankshaft 808 to rotate inside the water injector 801, and finally the piston 810 is driven to continuously reciprocate and linearly move through the deflection rod 809, so that positive pressure and negative pressure are continuously formed inside the water injector 801, because the tail end of the main water pipe 807 is connected with the water tank, water in the water tank is transported into the water jacking pipe 804 through the water injector 801, and is finally sprayed out through the atomizing nozzle 805, and the dust removal effect can be realized through sprayed water mist, so that the problem of dust flying is solved, a good working environment inside the device is provided, in addition, the water mist spraying process does not need to use other electric devices, and can be realized by utilizing the kinetic energy of the rotation of the disc body 101.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a shield constructs machine, includes blade disc (1) and host computer structure (2), its characterized in that:

the cutter head (1) is fixedly assembled at one end of the main machine structure (2), an inner fixed framework (6) is fixedly assembled on the inner wall of one side, close to the cutter head (1), of the main machine structure (2), a crushing mechanism (7) is fixedly arranged at the bottom of the inner wall of one side, close to the cutter head (1), of the main machine structure (2), and a water mist dust removal assembly (8) is fixedly assembled on the inner wall of the main machine structure (2) above the crushing mechanism (7);

the inside fixed mounting that runs through of host computer structure (2) has conveyer (9), host computer structure (2) deviate from the fixed equipment of one end of blade disc (1) has section of jurisdiction mounting plate (5), section of jurisdiction mounting plate (5) deviate from one side of host computer structure (2) is fixed equipment in proper order has a section of connector storehouse (3) and two sections of connector storehouses (4).

2. The shield tunneling machine of claim 1, wherein: cutterhead (1) still includes disk body (101), disk body (101) surface edge equidistance is fixed sets up through-hole (102) that run through disk body (101), the equal equidistance in one side of through-hole (102) of disk body (101) outer wall is arranged and is had slot sword (103), disk body (101) outer wall equidistance is rotated and is installed auxiliary wheel (105), fixed whitewashing mouth (106) that are provided with of disk body (101) outer wall equidistance.

3. The shield tunneling machine of claim 2, wherein: inner tube (104) have all been fixed to having seted up in the inside clearance that is located adjacent slotting tool (103) of disk body (101), just inner tube (104) all run through disk body (101), disk body (101) medial surface equidistance slides the equipment and has interior movable rod (107), the fixed welding of interior movable rod (107) lateral wall equidistance has interior ejector pin (108), and is adjacent the interval equidistance of interior ejector pin (108) is adjacent the interval of inner tube (104), just interior ejector pin (108) activity is inserted the inside of inner tube (104), interior movable rod (107) another lateral wall both ends are all fixed and are provided with guide slot frame (109).

4. A shield tunneling machine according to claim 3, characterized in that: host computer structure (2) still include stay tube (201), the center internal rotation of stay tube (201) installs main bearing (204), the inboard transmission of main bearing (204) is assembled main drive (205), the outer wall equidistance fixed welding of main bearing (204) has connecting steelframe (207), the end of connecting steelframe (207) with disk body (101) fixed welding, the one end fixed surface cover of connecting steelframe (207) is equipped with ring channel frame (208).

5. The shield tunneling machine of claim 4, wherein: the supporting tube (201) is close to the fixed incision ring (202) that is provided with of one end outer wall of disk body (101), personnel's cabin (203) have been fixed to have seted up on the inside top of supporting tube (201), the fixed equipment of the inside equidistance in edge of supporting tube (201) has impeld jar (206).

6. The shield tunneling machine of claim 5, wherein: interior fixed framework (6) still includes annular steelframe (603), two annular steelframe (603) are the box-like equipment of overlap formula, and two annular steelframes (603) are through one side welded steel sheet (602) fixed connection, the fixed cambered surface lug (604) that are provided with of opposite side equidistance of annular steelframe (603), the equal fixed welding of lateral wall of steel sheet (602) has with stay tube (201) fixed welded installation steelframe (601), guide way frame (109) slip cover is established the surface of annular steelframe (603).

7. The shield tunneling machine of claim 6, wherein: broken mechanism (7) still include falling the stone room (701), fall the fixed setting of stone room (701) and be in the outer wall bottom of stay tube (201), the both sides of falling stone room (701) all slide the equipment and have slip channel-section steel (703), the fixed guide tooth (704) that is provided with of inside equidistance of slip channel-section steel (703), two the end that guide tooth (704) opposite side is located the equal fixed welding in inside of falling stone room (701) has crushing harrow (706).

8. The shield tunneling machine of claim 7, wherein: the utility model discloses a stone falling device, including stay tube (201), equal fixed mounting in inside bottom both sides of stay tube (201) has the three-phase motor, the equal fixed mounting of output shaft of three-phase motor has drive gear (705), drive gear (705) with it meshes mutually to lead movable tooth (704), it is located to fall stone room (701) both ends the equal fixed welding of upper surface of drive gear (705) has arc backplate (702).

9. The shield tunneling machine of claim 8, wherein: water smoke dust removal subassembly (8) still include water injector (801), two equal fixed mounting of water injector (801) fall the upper surface of stone room (701), and with stay tube (201) inner wall is fixed connection, drive wheel (802) are installed in the rotation of water injector (801) one end lateral wall, and drive wheel (802) all imbed in the recess that the ring channel frame (208) surface was seted up, water injector (801) rotate install with drive wheel (802) fixed connection's bent axle (808), bent axle (808) end all rotates and installs deflection pole (809), the end rotation of deflection pole (809) is connected with piston ware (810), water injector (801) opposite side outer wall both sides are fixed connection respectively outlet pipe (803) and absorb water pipe (806).

10. The shield tunneling machine of claim 9, wherein: the two water outlet pipes (803) are communicated through a set top water pipe (804), the surface of the top water pipe (804) is fixedly connected with atomizing nozzles (805) at equal intervals, and the two water suction pipes (806) are communicated through a set main water pipe (807).