CN108374667A - Slurry-water balance type shield prototype and its installation method - Google Patents
Slurry-water balance type shield prototype and its installation method Download PDFInfo
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- CN108374667A CN108374667A CN201810245646.4A CN201810245646A CN108374667A CN 108374667 A CN108374667 A CN 108374667A CN 201810245646 A CN201810245646 A CN 201810245646A CN 108374667 A CN108374667 A CN 108374667A
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- water balance
- speed reducer
- main drive
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000009434 installation Methods 0.000 title claims description 16
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 52
- 239000002689 soil Substances 0.000 claims description 10
- 239000011440 grout Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 11
- 230000005641 tunneling Effects 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 abstract description 5
- 238000004088 simulation Methods 0.000 abstract description 4
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000011218 segmentation Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 20
- 238000010276 construction Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000000515 tooth Anatomy 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention provides a kind of slurry-water balance type shield prototypes, it is related to tunneling shield modelling technique field, including control system, Slurry treatment system, propulsion system, model casing and the shield machine main body being made of anterior shield, middle shield, backing and shield tail in model casing；Anterior shield includes cutterhead, main drive shaft, and middle shield includes speed reducer, torque sensor, drive motor, and backing includes attitude regulation system；Control system control propulsion system pulls reaction frame that thrust is transferred to shield shell by distance rod, and thrust is transferred to main drive shaft by shield shell again, pushes cutterhead driving, realizes driving and the section of jurisdiction supporting of shield prototype.The present invention is good by segmentation structure advantages of simple, the stability of shield shell, and large torque, the simulation of high-revolving slurry shield tunneling process can be realized under high hydraulic condition；Have the functions such as mud and water balance, attitude regulation, grouting behind shaft or drift lining, stable shield machine driving attitude, tool wear, excavation face, muddy water splitting and advance geologic prediction experiment can be carried out.
Description
Technical field
The present invention relates to tunneling shield modelling technique fields, and in particular to a kind of slurry-water balance type shield prototype and
Its installation method.
Background technology
With the continuous development of Tunnel Engineering construction, shield method have become the most important form of construction work of tunnel construction it
One, to getting over the construction in river tunnel over strait, construction environment is complex, most direct high hydraulic pressure problem is faced with, with Qiongzhou Strait
Tunnel is representative, and the nearly 2MPa of hydraulic pressure, the development to tunnel construction is huge challenge.
Slurry balance shield machine is the capital equipment of submerged tunnel shield-tunneling construction, in shield tunneling process, stratum geology
Many boring parameters of hydrologic condition and shield machine itself have vital influence to surrounding formation stability.It is real at this stage
It tests condition and funds is limited, referential Practical Project is less, therefore need to simulate large-diameter shield machine in height by model test
Tunneling process under hydraulic condition in the soil body tests the relevant parameter of shield machine and the soil body, provides experimental data, to
Study under high hydraulic condition relevant issues during slurry balance shield construction, ensure the efficient of submerged tunnel construction, safety into
Row.
Currently, having certain research to indoor slurry balance shield model test.Representative testing equipment dress
Set including：The miniature slurry-water balance type shield machine simulation test device that Japanese Waseda University develops is filled using the micro-assay
It sets and driving mechanism etc. is studied；The muddy water balance type shield simulation testing system that Southwest Jiaotong University develops, can
Simulate the submerged tunnel slurry shield tunneling process under high hydraulic pressure (up to 1.0MPa), and synchronous recording soil pressure, hydraulic pressure, displacement
It analyzes and researches with boring parameter etc.；Tongji University has developed a kind of indoor model examination for simulating slurry balance shield construction
Experiment device, including digging propulsive mechanism, circulation mechanism and slip casting mechanism can largely simulate tunneling process, study knife
Influence of the factors such as dish opening rate and Caused by Backfill Grouting Pressure to slurry shield tunneling process.
The above slurry balance shield prototype design is relatively easy, hydraulic pressure highest 1.0MPa is realized, to carrying out experimental study
With certain limitation.For can further study the driving attitude of the large-diameter shield under high hydraulic condition, tool wear,
The problems such as excavation face is stable, muddy water cleaves and advance geologic prediction, need to carry out the mud and water balance under nearly 2.0MPa high hydraulic conditions
Shield driving is tested, and therefore, shield machine fuselage can be caused longer, equipment installation position complexity is various.
Invention content
Multiple components can be made to be assembled in minor diameter by segmented assembly mode the purpose of the present invention is to provide a kind of
Simple and reasonable in shield machine, good operating stability can realize large torque, high rotating speed shield driving under high hydraulic condition
Slurry-water balance type shield prototype, to solve technical problem present in above-mentioned background technology.
To achieve the goals above, this invention takes following technical solutions：
One aspect of the present invention provides a kind of slurry-water balance type shield prototype, which includes the mould for placing the soil body
Molding box, Slurry treatment system, PLC control system and the shield machine in the model casing, the shield machine are stretched by guide sleeve
Including anterior shield, middle shield, backing and shield tail, connected by rotating stuck type connection type between the anterior shield, middle shield, backing three parts
It connects；Three parts are easy to removal and installation between each other by rotating stuck type connection, connection installation rubber strip machine O-ring seal
Realize sealing；The shield tail is connected by screw bolts with the backing；
The anterior shield includes cutterhead and the main drive shaft that is connect with cutterhead, and main drive sealing knot is set on the main drive shaft
Structure, the main drive sealing structure surround muddy water cabin with the cutterhead and the shield shell of anterior shield, muddy water deck board；
The middle shield includes speed reducer and drive motor, the front end drive connection main drive shaft of the speed reducer, institute
The rear end for stating speed reducer connects the drive motor by torque sensor；The torque sensor, the drive motor with
The PLC control system communication connection；Torque sensor is used to measure torque, the rotary speed parameter of working condition.
The backing includes attitude regulation system, the propulsion position for adjusting shield machine and angle；
The shield tail includes the tail sealing structure being made of three annular seals and ball bowl；The tail sealing structure is by three
Annular seal and ball bowl composition, one of groove of inner ring, outer ring twice groove are sealed using oil pressure, are installed on the section of jurisdiction and shield
Between shell.
Shield tail brush is fixed on shield shell, and You Yiqiuwan mechanisms can be rotated with 360 ° inside shield tail brush, and ball bowl internal sleeve is in pipe
On piece can slide axially with section of jurisdiction.
Sliding is equipped with distance rod in the guide sleeve, and the rear end of the distance rod is connected with reaction frame, the model casing
Propulsion system is connected between the reaction frame, the propulsion system is communicated to connect with the PLC control system, for realizing
The propulsion and reset of shield machine.
Further, the muddy water cabin is connected to the Slurry treatment system by inlet pipe with grout outlet.At the muddy water
Reason system is connected to the muddy water cabin of the anterior shield by the inlet pipe and the grout outlet, and the muddy water in shield driving is realized
Cyclic process.
Further, the attitude regulation system includes the hydraulic pressure that multiple central shafts around the distance rod are uniformly arranged
The front end of oil cylinder, the hydraulic cylinder is articulated on the shield shell of the middle shield, and the rear end of the hydraulic cylinder is articulated in described push away
The top of power bar.The adjustment of position and angle is realized by the variable quantity of different hydraulic cylinders.
Further, the propulsion system includes the hydraulic drive oil cylinder being uniformly set to around the guide sleeve, described
The front end of hydraulic drive oil cylinder is fixed on the model casing, and the rear end of the hydraulic drive oil cylinder is fixed on the reaction frame
On.The propulsion system is made of two propelling cylinders, is connect with the reaction frame and the external structure model casing, interconnecting piece
Position is installed on the upper left corner, the lower right corner (or the lower left corner, upper right corner) of the reaction frame, forms diagonal symmetric form, ensures thrust
Uniformly.
Further, the reaction frame is set on a guide rail, and the reaction frame can slide back and forth on the guide rail.
Further, the rear end of the main drive shaft is equipped with internal gear, and the front end of the speed reducer is equipped with and the internal tooth
Take turns intermeshing external gear.
Further, engaging by the internal gear and the external gear between the speed reducer and the main drive shaft
Realize that eccentric connection, the speed reducer are fixed in speed reducer support plate.
Further, the shield shell of the backing is equipped with injected hole.The injected hole is located on the backing shield shell, can be into
Row grouting behind shaft or drift lining process.
Further, a diameter of 620mm of the shield machine.
Another aspect of the present invention provides a kind of installation method of slurry-water balance type shield prototype, includes the following steps：
Step 1：Assembled anterior shield；Cutterhead is connect by bolt with main drive shaft, main drive sealing structure and muddy water cabin are installed
Plate is bolted internal gear and main drive shaft, and inlet pipe, grout outlet are connected to muddy water deck board；
Step 2：Shield in assembly；Speed reducer support plate is installed, speed reducer is installed in speed reducer support plate, torque is installed
Sensor stand and torque sensor install drive motor support plate, drive motor are connected to torque sensor；
Step 3：Assembled backing and shield tail；Hydraulic cylinder is mounted on respectively in drive motor support plate, then will be pushed away
The tail portion of power bar and hydraulic cylinder is connected and fixed, and installs tail sealing structure.
Advantageous effect of the present invention：Multiple components are made to be assembled in the shield machine of minor diameter by segmented assembly mode, structure
Advantages of simple, good operating stability can realize large torque, high rotating speed shield driving under high hydraulic condition.Specifically,
1, the present invention can carry out indoor shield driving experiment under nearly 2.0MPa high hydraulic conditions, can realize large torque (0~
35KNm), high rotating speed (0~50r/min) can tunnel overall process to the slurry shield under high hydraulic condition and simulate.
2, shield prototype of the invention has mud and water balance, attitude regulation, grouting behind shaft or drift lining function, can carry out high hydraulic pressure item
Driving attitude, tool wear, the excavation face of large-diameter shield under part are stable, muddy water cleaves and the indoor examinations such as advance geologic prediction
It tests.
3, the configuration of the present invention is simple is closed each composed structure in shield prototype using shield shell segmented erection method
Reason is mounted on corresponding position, and multiple devices can be installed in small-diameter shield machine simultaneously, makes its collaborative work, simulates muddy water
Balance shield main process.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, others are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the slurry-water balance type shield prototype overall structure figure described in the embodiment of the present invention.
Fig. 2 is the shield machine structure chart in the slurry-water balance type shield prototype model casing described in the embodiment of the present invention.
Fig. 3 is that the slurry-water balance type shield model owner described in the embodiment of the present invention drives sealing structure enlarged drawing.
Fig. 4 is the slurry-water balance type shield prototype tail sealing schematic enlarged-scale view described in the embodiment of the present invention.
Fig. 5 is the slurry-water balance type shield prototype shield shell connection structure enlarged drawing described in the embodiment of the present invention.
Wherein：1- model casings；2- Slurry treatment systems；3- guide sleeves；4- anterior shields；Shield in 5-；6- backing；7- shield tails；8-
Main drive shaft；9- muddy water cabin；10- speed reducers；11- drive motors；12- torque sensors；13- tail sealing structures；14- thrusts
Bar；15- reaction frames；16- inlet pipes；17- grout outlets；18- hydraulic cylinders；19- hydraulic drive oil cylinders；20- guide rails；21- internal tooths
Wheel；22- external gears；23- speed reducer support plates；24- injected holes；The main drive sealing structures of 25-；2501- sealing flanges；2502- revolves
Turn backbone sealing ring；2503- high-pressure oil ducts；2504- sealing element flanges；2505- connection bolts；26- cutters；27- muddy water cabin
Plate；28- drive motor support plates；29- torque sensor holders；The first sealing rings of 30-；The second sealing rings of 31-；32- thirds are close
Seal ring；33- ball bowl structures；35- cutterheads；36-O type sealing rings；The threaded connection places 37-.
Specific implementation mode
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or module with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that is used in the specification of the present invention arranges
It refers to there are the feature, integer, step, operation, element and/or module, but it is not excluded that presence or addition to take leave " comprising "
Other one or more features, integer, step, operation, element, module and/or their group.
It should be noted that in embodiment of the present invention unless specifically defined or limited otherwise, term is " even
Connect ", " fixation " etc. shall be understood in a broad sense, may be a fixed connection, may be a detachable connection, or is integral, can be machine
Tool connects, and can also be electrical connection, can be directly connected to, can also be to be indirectly connected with by intermediary, can be two
The interaction relationship of connection or two elements inside element, unless being limited with specific.For those skilled in the art
For, the concrete meaning of above-mentioned term in embodiments of the present invention can be understood as the case may be.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology
Term and scientific terminology) there is meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Also answer
It should be appreciated that those terms such as defined in the general dictionary should be understood that with in the context of the prior art
The consistent meaning of meaning, and unless defined as here, will not be explained with the meaning of idealization or too formal.
For ease of the understanding to the embodiment of the present invention, solved below in conjunction with attached drawing is further by taking specific embodiment as an example
Explanation is released, and embodiment does not constitute the restriction to the embodiment of the present invention.
Those of ordinary skill in the art are it should be understood that attached drawing is the schematic diagram of one embodiment, the portion in attached drawing
Part or device are not necessarily implemented necessary to the present invention.
Embodiment one
As shown in Figure 1, the embodiment of the present invention one provides slurry-water balance type shield prototype, including place the model casing of the soil body
1, Slurry treatment system 2, PLC control system and the shield machine in the model casing is stretched by guide sleeve 3, shield machine is by pushing away
Power bar 14 is connect with reaction frame 15, and hydraulic drive oil cylinder 19 is connected between reaction frame 15 and model casing 1, and the setting of reaction frame 15 exists
On guide rail 20.
When hydraulic drive oil cylinder 19 bounces back, pulling force is provided for reaction frame 15, drives reaction frame 15 to move forward, reaction frame 15
It is that distance rod 14 provides thrust to move forward, and thrust is passed to the shield machine in model casing 1, carried for shield machine by distance rod 14
For forward cutting thrust；When hydraulic drive oil cylinder 19 stretches out, thrust is provided for reaction frame 15, reaction frame 15 is pushed to move back
Dynamic, reaction frame 15 moves backward provides pulling force for distance rod 14, and pulling force is passed to the shield machine in model casing 1 by distance rod 14,
Return pulling force backward is provided for shield machine.
Embodiment two
Second embodiment of the present invention provides slurry-water balance type shield prototypes, including place model casing 1, the Slurry treatment of the soil body
System 2, PLC control system and the shield machine in the model casing is stretched by guide sleeve 3, shield machine by distance rod 14 with it is anti-
Power frame 15 connects, and hydraulic drive oil cylinder 19 is connected between reaction frame 15 and model casing 1, and reaction frame 15 is arranged on guide rail 20.
Sliding is equipped with distance rod 14 in the guide sleeve 3, and the rear end of the distance rod 14 is connected with reaction frame 15, institute
It states and is connected with propulsion system between model casing 1 and the reaction frame 15, the propulsion system is communicated with the PLC control system
Connection, for realizing the propulsion and reset of shield machine.The propulsion system includes the liquid being uniformly set to around the guide sleeve 3
Propelling cylinder 19, the front end of the hydraulic drive oil cylinder 19 is pressed to be fixed on the model casing 1, the hydraulic drive oil cylinder 19
Rear end is fixed on the reaction frame 15.
Specifically, when hydraulic drive oil cylinder 19 bounces back, pulling force is provided for reaction frame 15, reaction frame 15 is driven to move forward,
It is that distance rod 14 provides thrust that reaction frame 15, which moves forward, and thrust is passed to the shield machine in model casing 1 by distance rod 14, is shield
Structure machine provides forward cutting thrust；When hydraulic drive oil cylinder 19 stretches out, thrust is provided for reaction frame 15, push reaction frame 15 to
After move, reaction frame 15 moves backward provides pulling force for distance rod 14, and pulling force is passed to the shield in model casing 1 by distance rod 14
Machine provides return pulling force backward for shield machine.
As shown in Figure 2, wherein the shield machine includes anterior shield 4, middle shield 5, backing 6 and shield tail 7；The anterior shield 4, middle shield
5, mode is connected through a screw thread between 6 three parts of backing to connect.
The anterior shield 4 includes cutterhead 35 and the main drive shaft 8 being connect with cutterhead 35, and master is set on the main drive shaft 8
Sealing structure 25 is driven, the main drive sealing structure 25 surrounds muddy water cabin with the cutterhead 35 and anterior shield shield shell and muddy water deck board 27
9；Muddy water cabin 9 is connected to the Slurry treatment system 2 with grout outlet 17 by inlet pipe 16, to provide mud for shield machine.
The middle shield 5 includes speed reducer 10 and drive motor 11, the front end drive connection main drive of the speed reducer 10
The rear end of moving axis 8, the speed reducer 10 connects the drive motor 11 by torque sensor 12；The torque sensor 12,
The drive motor 11 is communicated to connect with the PLC control system.The rear end of the main drive shaft 8 is equipped with internal gear 21, institute
The front end for stating speed reducer 10 is equipped with and 21 intermeshing external gear 22 of the internal gear.Drive motor 11 can be by interior when rotating
Gear 21 imparts power to main drive shaft 8 with engaging for external gear 22, and main drive shaft 8 is rotated with movable knife disc 35,35 turns of cutterhead
Dynamic band cutter 26 cuts the soil body.
Reality is engaged by the internal gear 21 and the external gear 22 between the speed reducer 10 and the main drive shaft 8
Existing eccentric connection.The maximum gauge 428mm of the speed reducer component, speed reducer front axle are eccentric part, outer diameter 120mm, installation
The internal gear of a diameter of 304.5mm is engaged with speed reducer front axle, and the rotary power of drive motor 11 is transferred to the main driving
Axis 8 drives the cutterhead 35 to rotate.
Wherein, drive motor 11 is mounted in drive motor support plate 28, and speed reducer 10 is mounted on speed reducer support plate 23
On, torque sensor 12 is mounted on torque sensor holder 29, and torque sensor holder 29 is located at speed reducer 10 and driving horse
Up between 11.The effect of the speed reducer is to reduce rotating speed, increase torque, and the shield prototype described in the present embodiment can reach
Torque range be：0~35KNm；The range of speeds is：0~50r/min.
The backing 6 includes attitude regulation system, the propulsion position for adjusting shield machine and angle；The attitude regulation
System includes the hydraulic cylinder 18 that multiple central shafts around the distance rod 14 are uniformly arranged, the front end of the hydraulic cylinder 18
It is articulated in the drive motor support plate 28, the rear end of the hydraulic cylinder 18 is articulated in the top of the distance rod 14.It pushes away
The thrust or pulling force of power bar 14 can pass to drive motor support plate 28 by hydraulic cylinder 18.
The shield tail includes the tail sealing structure 13 being made of three annular seals and ball bowl, is set on the shield shell of the backing
There are injected hole 24, the grouting behind shaft or drift lining hole 24 to be located on 6 shield shell of the backing, grouting behind shaft or drift lining process can be carried out.
Embodiment three
The embodiment of the present invention three provides slurry-water balance type shield prototype, and the course of work is as follows：
PLC control system transmits signal control hydraulic drive oil cylinder 19 and stretches, when hydraulic drive oil cylinder 19 bounces back, hydraulic pressure
Propelling cylinder 19 pull reaction frame 15 along guide rail move forward, reaction frame 15 move forward push distance rod 14 along guide sleeve 3 to
Thrust is passed to the hydraulic cylinder of attitude regulation system by preceding movement, guide sleeve 3, and thrust is passed to middle shield 5 by hydraulic cylinder again
Drive motor support plate 28, thrust passes to main drive sealing structure 25 by middle shield shield shell again, and main drive sealing structure 25 will push away again
Power passes to cutterhead 35, and cutterhead 35 realizes forward cutting thrust to the soil body.
Wherein, as shown in figure 3, for the main drive sealing structure enlarged drawing described in the embodiment of the present invention three, the main drive is close
Seal structure 25 includes sealing flange 2501, rotation backbone sealing ring 2502, high-pressure oil duct 2503, sealing element flange 2504, connection
Bolt 2505.Sealing flange 2501 is connected to by connecting bolt 2505 in muddy water deck board 27, and sealing element flange 2504 passes through company
Connecting bolt 2505 is connected to the both sides of sealing flange 2501, and rotation bone is set between sealing element flange 2504 and sealing flange 2501
Frame sealing ring 2502 sets high-pressure oil duct 2503 between sealing flange 2501 and main drive shaft 8.
When hydraulic cylinder 19 extends, hydraulic cylinder 19 pushes reaction frame 15 to be moved backward along guide rail, and reaction frame moves back
Dynamic that distance rod 14 is driven to move backward, pulling force is passed to the hydraulic cylinder 19 of attitude regulation system, hydraulic oil by distance rod 14 again
Cylinder 19 pulls shield shell to move backward, to realize the reset of shield machine.
PLC control system control drive motor is rotated according to corresponding rotating speed, and drive motor 11 passes through torque sensor again
12 drive speed reducers 10 run, speed reducer 10 operation drive its front end external gear 22 rotate, external gear 22 with mounted on master
The internal gear 21 of 8 rear end of drive shaft is intermeshed, and the rotation of external gear 22 drives internal gear 21 to rotate, 21 band of further internal gear
Dynamic main drive shaft 8 rotates, and the rotation band movable knife disc 35 of main drive shaft 8 rotates, and cutterhead 35 passes through the cutter on cutterhead 35
26 realize the cutting to the soil body.
Example IV
The embodiment of the present invention four provides a kind of assemble method of slurry-water balance type shield prototype, is broadly divided into three-stage
Assembly realizes large torque, assembled this method flow of minor diameter slurry shield prototype of high rotating speed functions includes following step
Suddenly：
1. assembled anterior shield 4：Prepare each section component, cutter 26 is installed on cutterhead 35, connects main drive shaft 8 and cutterhead
35 are bolted, and install main drive sealing structure 25 and muddy water deck board 27, internal gear 21 and main drive shaft 8 are bolted, before assembled
Inlet pipe 16, grout outlet 17 are connected to muddy water deck board 27 by shield 4；
2. shield 5 in assembled：Speed reducer support plate 23 is installed, speed reducer 10 is installed in speed reducer support plate 23 and and internal tooth
21 engagement of wheel, installation torque sensor holder 29 and torque sensor 12, shield 5 in assembly, installation drive motor support plate 28 will
Drive motor 11 is connected to torque sensor 12；
3. assembled backing 7 and shield tail 6：The front end of 4 hydraulic cylinders 18 of attitude regulation system is installed respectively and is articulated in
In drive motor support plate 28, assembled backing 7, then the tail portion of distance rod 14 and hydraulic cylinder 18 is pivotally connected, tail sealing is installed
Structure 13.
As shown in figure 4, the anterior shield 4, middle shield 5, backing 6 form shield prototype main part, three parts are mutual
It threadedly connects, easy to removal and installation, connection installation rubber strip machine O-ring seal 36 realizes sealing, is threadedly coupled
Place 37 is located at the rear side of O-ring seal 36.
As shown in figure 5, the tail sealing structure 13 of slurry-water balance type shield prototype described in the embodiment of the present invention four
Schematic enlarged-scale view, the tail sealing structure 13 include the first sealing ring 30, the second sealing ring 31, third sealing ring 32 and ball bowl
Structure 33, one of groove of inner ring, if the first sealing ring 30, outer ring twice groove sets the sealing of the second sealing ring 31 and second respectively
Ring 32, is sealed using oil pressure, is installed between the distance rod 14 and shield shell.Shield tail brush is fixed on shield shell, ball bowl structure 33
It can be rotated with 360 ° inside shield tail brush, ball bowl internal sleeve can slide axially on distance rod 14 with distance rod.
Quickly and repeatedly carry out indoor shield model driving experiment to be more advantageous to, shield diameter should be smaller, herein shield
A diameter of 620mm of machine, the shield prototype that above-mentioned apparatus component is assembled by the above method, internal each component realize front and back
It is linked in sequence, to multiple functions such as the large torque for realizing small-diameter shield machine, high rotating speeds.
In conclusion the embodiment of the present invention makes multiple components by preceding by anterior shield, three sections of erection methods of middle shield, backing
It has sequentially been mounted on afterwards in minor diameter shield shield shell, has kept its simple and reasonable, compact, there is preferable job stability, be
It simulates major diameter slurry balance shield model test under high hydraulic condition and provides large torque, high rotating speed, be indoor simulation Gao Shui
Slurry shield driving experiment under pressure, major diameter, complex stratum condition provides important reference frame, to shield model test
Development it is significant.
One of ordinary skill in the art will appreciate that：The component in device in the embodiment of the present invention can be according to embodiment
Description be distributed in the device of embodiment, respective change can also be carried out and be located at one or more dresses different from the present embodiment
In setting.The component of above-described embodiment can be merged into a component, can also be further split into multiple subassemblies.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (10)
1. a kind of slurry-water balance type shield prototype, including the model casing (1) of the placement soil body, Slurry treatment system (2), PLC controls
System processed and shield machine in the model casing is stretched by guide sleeve (3), it is characterised in that：The shield machine includes anterior shield
(4), middle shield (5), backing (6) and shield tail (7), thread seal connects between the anterior shield (4), middle shield (5), backing (6) three parts
It connects, is bolted between the shield tail (7) and the backing (6)；
The anterior shield (4) includes cutterhead (35) and the main drive shaft (8) being connect with cutterhead (35), is covered on the main drive shaft (8)
Equipped with main drive sealing structure (25), main drive sealing structure (25) and the cutterhead (35), the shield shell of the anterior shield (4) and muddy water cabin
Plate (27) surrounds muddy water cabin (9)；
The middle shield (5) includes speed reducer (10) and drive motor (11), described in the front end of the speed reducer (10) is sequentially connected
The rear end of main drive shaft (8), the speed reducer (10) connects the drive motor (11) by torque sensor (12)；The torsion
Square sensor (12), the drive motor (11) are communicated to connect with the PLC control system；After the drive motor (11)
End is fixed in drive motor support plate (28)；
The backing (6) includes attitude regulation system, the propulsion position for adjusting shield machine and angle；
The shield tail (7) includes by the first sealing ring (30), the second sealing ring (31), third sealing ring (32) and ball bowl structure
(33) the tail sealing structure (13) formed；
Sliding is equipped with distance rod (14) in the guide sleeve (3), and the rear end of the distance rod (14) is connected with reaction frame (15),
Propulsion system, the propulsion system and the PLC control system are connected between the model casing (1) and the reaction frame (15)
Communication connection, for realizing the propulsion and reset of shield machine.
2. slurry-water balance type shield prototype according to claim 1, it is characterised in that：The muddy water cabin (9) by into
Slurry pipe (16) is connected to the Slurry treatment system (2) with grout outlet (17).
3. slurry-water balance type shield prototype according to claim 1, it is characterised in that：The attitude regulation system includes
The hydraulic cylinder (18) that multiple central shafts around the distance rod (14) are uniformly arranged, the front end pivot of the hydraulic cylinder (18)
It is connected on the drive motor support plate (28), the rear end of the hydraulic cylinder (18) is articulated in the top of the distance rod (14)
End.
4. slurry-water balance type shield prototype according to claim 3, it is characterised in that：The propulsion system includes equal
The even hydraulic drive oil cylinder (19) around the guide sleeve (3), the front end of the hydraulic drive oil cylinder (19) is fixed on institute
It states on model casing (1), the rear end of the hydraulic drive oil cylinder (19) is fixed on the reaction frame (15).
5. slurry-water balance type shield prototype according to claim 4, it is characterised in that：The reaction frame (15) is set to one
On guide rail (20), the reaction frame (15) can slide back and forth on the guide rail (20).
6. slurry-water balance type shield prototype according to claim 1, it is characterised in that：After the main drive shaft (8)
End is equipped with internal gear (21), and the front end of the speed reducer (10) is equipped with and the internal gear (21) intermeshing external gear
(22)。
7. slurry-water balance type shield prototype according to claim 6, it is characterised in that：The speed reducer (10) with it is described
Eccentric connection, the deceleration are realized by the engagement of the internal gear (21) and the external gear (22) between main drive shaft (8)
Machine (10) is fixed in speed reducer support plate (23).
8. slurry-water balance type shield prototype according to claim 7, it is characterised in that：On the shield shell of the backing (6)
Equipped with injected hole (24).
9. according to right 1-8 any one of them slurry-water balance type shield prototypes, it is characterised in that：The diameter of the shield machine
For 620mm.
10. a kind of installation method of slurry-water balance type shield prototype, which is characterized in that include the following steps：
Step 1：Assembled anterior shield (4)；Cutterhead (35) is connect by bolt with main drive shaft (8), main drive sealing structure is installed
(25) and muddy water deck board (27) it, is bolted internal gear (21) and main drive shaft (8), even by inlet pipe (16), grout outlet (17)
It is connected to muddy water deck board (27)；
Step 2：Shield (5) in assembly；Speed reducer support plate (23) is installed, speed reducer (10) is installed on speed reducer support plate (23)
On, installation torque sensor holder (29) and torque sensor (12), installation drive motor support plate (28), by drive motor
(11) connection is connect with the torque sensor (12)；
Step 3：Assembled backing (6) and shield tail (7)；Hydraulic cylinder (18) is mounted on drive motor support plate (28) respectively
On, then distance rod (14) and the tail portion of hydraulic cylinder (18) be connected and fixed, installation tail sealing structure (13).
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|---|---|---|---|
| CN201810245646.4A CN108374667A (en) | 2018-03-23 | 2018-03-23 | Slurry-water balance type shield prototype and its installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245646.4A CN108374667A (en) | 2018-03-23 | 2018-03-23 | Slurry-water balance type shield prototype and its installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108374667A true CN108374667A (en) | 2018-08-07 |
Family
ID=63019167
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|---|---|---|---|
| CN201810245646.4A Pending CN108374667A (en) | 2018-03-23 | 2018-03-23 | Slurry-water balance type shield prototype and its installation method |
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| CN (1) | CN108374667A (en) |
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| CN108868800A (en) * | 2018-08-25 | 2018-11-23 | 许慧 | One kind preventing incrusted shield machine at excavation |
| CN109026052A (en) * | 2018-08-30 | 2018-12-18 | 上海隧道工程有限公司 | Push pipe for construction tunnel service channel originates frame angle adjustment device |
| CN109060545A (en) * | 2018-08-24 | 2018-12-21 | 北京交通大学 | The Water Pressure Resistance device for dynamically detecting of tail seal grease of shield |
| CN109252871A (en) * | 2018-10-08 | 2019-01-22 | 中铁华隧联合重型装备有限公司 | Mud water type TBM and slurry-water balance type shield machine and its control method |
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| CN109869161A (en) * | 2019-04-11 | 2019-06-11 | 中铁工程装备集团有限公司 | A kind of mini-sized tunnelling machine |
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| CN111188623A (en) * | 2020-03-09 | 2020-05-22 | 中国铁建重工集团股份有限公司 | Shield machine |
| CN113409670A (en) * | 2021-04-23 | 2021-09-17 | 海南大学 | Pipeline shield construction device for simulating deep sea environment |
| CN113279783A (en) * | 2021-05-28 | 2021-08-20 | 苏州中车建设工程有限公司 | Tunnel construction shield constructs with slip casting equipment after wall |
| CN116220706A (en) * | 2023-03-30 | 2023-06-06 | 浙江大学 | Double-cabin type slurry balance shield tunneling test device and method |
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