CN105728379A - Cleaning device for washing shield tunneling machine cutterhead and sealing device thereof - Google Patents
Cleaning device for washing shield tunneling machine cutterhead and sealing device thereof Download PDFInfo
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- CN105728379A CN105728379A CN201610224303.0A CN201610224303A CN105728379A CN 105728379 A CN105728379 A CN 105728379A CN 201610224303 A CN201610224303 A CN 201610224303A CN 105728379 A CN105728379 A CN 105728379A
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- sealing member
- sealing device
- cylinder
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- 238000007789 sealing Methods 0.000 title claims abstract description 170
- 238000004140 cleaning Methods 0.000 title abstract description 38
- 230000005641 tunneling Effects 0.000 title abstract 2
- 238000005406 washing Methods 0.000 title abstract 2
- 239000012530 fluid Substances 0.000 claims abstract description 73
- 210000004907 gland Anatomy 0.000 claims description 12
- 239000000523 sample Substances 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 239000002689 soil Substances 0.000 description 18
- 238000010276 construction Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000004519 grease Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 235000014593 oils and fats Nutrition 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a cleaning device for washing a shield tunneling machine cutterhead and a sealing device thereof. The sealing device comprises a shell and a sealing part, and the sealing part is arranged in the shell and has flexibility or elasticity. A channel is formed in the sealing part. A fluid pressure chamber is formed between the shell and the sealing part. Fluid is injected into the fluid pressure chamber so that the cross sectional area of the channel can have a tendency to decrease. The cleaning device comprises the sealing device. The sealing effect of the sealing device can be adjusted through the fluid pressure in the fluid pressure chamber.
Description
Technical field
The present invention relates to a kind of Tunnel Engineering machinery, particularly to a kind of rinser for rinsing cutter head of shield machine and sealing device thereof.
Background technology
Mud cake is the blocks of the semi-consolidated and consolidation shape that the tiny clay particle that gets off of the knife cutting of shield machine, chip reassemble on cutterhead and in soil cabin.When after cutterhead mud lining, dregs flow channel is easily blocked by mud cake, in turn result in the reduction of shield machine fltting speed, thrust increase, soil improvement deleterious, cutterhead bearing temperature increase the phenomenon such as too fast, then it is likely to cause ground deformation to increase and ground cave-in accident even occurs, have a strong impact on shield-tunneling construction safety.Mud cake problem has become the important hazard factor affecting shield-tunneling construction safety and efficiency, Chinese scholars and the construction approach constantly seeking solution " mud cake " problem per family in practice.
Solve mud cake problem at present mainly to abolish two aspects set about from mud cake prevention and mud cake.Mud cake preventive measure generally comprises shield machine design and construction aspect, for instance strengthen cutterhead aperture opening ratio, inject soil improvement agent, set up agitating device, set suitable shield driving parameter, regularly open a position inspection etc..Mud cake is abolished, and is the treatment measures taked after there is mud lining problem (being generally fixedly arranged on cutterhead), it is presently mainly atmospheric pressure or under pressure warehouse entry manually to abolish, but no matter it is that normal pressure enters cabin or warehouse entry with pressure all also exists bigger construction risk, mud cake is removed particularly in geological stability poor location warehouse entry, generally require the geology carrying out complexity to reinforce, not only cost is high, and the cycle is long.Owing to geological conditions is difficult to accurately prediction, the preventing and abolishing at present still without the efficient technical method of one of mud cake.
Summary of the invention
How the technical problem to be solved is for seal movable part, and sealing effectiveness is adjustable.
For above-mentioned technical problem, the present invention proposes a kind of sealing device, comprising: shell；And arrange in the enclosure and there is flexible or elastic sealing member, the passage being provided with in sealing member, wherein, between shell and sealing member, form fluid pressure chamber, in fluid pressure chamber, inject fluid the cross-sectional area of passage can be made to have the trend of reduction.
In a specific embodiment, sealing member is tubular, and fluid pressure chamber surrounds the periphery wall of sealing member around the axis of sealing member.
In a specific embodiment, shell includes cylinder and is arranged at the first interior and spaced-apart limiting section of cylinder and the second limiting section,
Sealing member is arranged in cylinder, and two ends are connected to the first limiting section and the second limiting section respectively.
In a specific embodiment, the first limiting section is the bulge loop radially-inwardly protruded from cylinder.
In a specific embodiment, shell also includes the gland that is coaxial and that be pressed towards cylinder with cylinder being arranged on cylinder one end,
Second limiting section is the bulge loop that gland extend in cylinder.
In a specific embodiment, with bolts between gland and cylinder.
In a specific embodiment, the periphery wall of inwall and sealing member that fluid pressure chamber is formed groove by the internal perisporium depression of cylinder encloses and forms.
In a specific embodiment, sealing member is made up of multiple sealing rings that are multiple that be coaxially disposed and that stack gradually.
In a specific embodiment, groove includes a plurality of cannelure that is coaxial with sealing member and that align one by one with sealing ring, and the width of cannelure is less than the width of sealing ring.
In a specific embodiment, groove also includes bar groove that is that radially extend and that connect each bar cannelure.
The invention allows for a kind of rinser for rinsing cutter head of shield machine, it includes device sealed as above.
After being inserted into movable part in the passage of sealing member, injecting fluid in fluid injecting hole, fluid enters into fluid pressure chamber, the passages shrink of sealing member, seals until being formed between sealing member and movable part.Can by arranging the seal degree that the fluid pressure in fluid pressure chamber regulates between sealing member and movable part, this just can be formed under the premise sealed at sealing member and movable part, movable part vertically pull and push suffered resistance or relative to sealing member rotate suffered resistance can be little as far as possible.
Accompanying drawing explanation
Based on embodiment reference accompanying drawing, the present invention will be described in more detail hereinafter.Wherein:
Fig. 1 is the complete section schematic diagram of the sealing device in one embodiment of the present invention；
Fig. 2 is the complete section schematic diagram of the rinser in one embodiment of the present invention；
Fig. 3 is the use view of the rinser in Fig. 2；
Fig. 4 is the use view of the rinser in Fig. 2；
Fig. 5 is the partial sectional view cleaning pipe in one embodiment of the present invention；
Fig. 6 be in Fig. 5 clean pipe disassemble schematic diagram.
In the accompanying drawings, identical parts use identical accompanying drawing labelling.Accompanying drawing is not drawn according to actual ratio.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 shows the sealing device 50 in one embodiment of the present invention.This sealing device 50 includes shell 75 and sealing member 52.Being provided with cavity in shell 75, sealing member 52 is arranged in this cavity.Sealing member 52 has flexibility or elasticity.Sealing member 52 can be rubber element.The passage of sealing member 52 it is provided through in this sealing member 52.This passage can be straight channel.Shell 75 and sealing member 52 enclose out airtight chamber, and this chamber is fluid pressure chamber 53.Can arranging the through hole connecting this fluid pressure chamber 53 on shell 75, this through hole passes through for fluid, and this through hole is fluid injecting hole 56.Injection pressure fluid in this chamber, fluid pressure chamber 53 expands, so that the cross section of the passage in sealing member 52 has the trend reduced.The fluid injected is preferably liquid, more preferably water.
After being inserted into movable part in the passage of sealing member 52, injecting fluid in fluid injecting hole 56, fluid enters into fluid pressure chamber 53, the passages shrink of sealing member 52, seals until being formed between sealing member 52 and movable part.The seal degree between sealing member 52 and movable part can be regulated by arranging the fluid pressure in fluid pressure chamber 53, this just can be formed under the premise sealed at sealing member 52 and movable part, movable part vertically pull and push suffered resistance or relative to sealing member 52 rotate suffered resistance can be little as far as possible.
It is applied in, with sealing device 50, the rinser 1 rinsing cutter head of shield machine below to be specifically described.
As in figure 2 it is shown, rinser 1 is typically mounted on the native storehouse dividing plate 2 of shield machine.This rinser 1 includes ball and socket base 10, is arranged on the core 20 in ball and socket base 10, sealing device 50 and cleaning pipe 40 (being equivalent to above-mentioned movable part).Passage 21 it is provided with in core 20.Passage 21 is straight channel.Sealing device 50 is connected by the passage 21 of pipeline 30 with core 20.The shell 75 of sealing device 50 is configured to tubular structure.The two ends of pipeline 30 connect core 20 and shell 75 respectively.Pipeline 30, passage 21 and shell 75 are coaxially disposed.The fluid pressure chamber 53 of sealing device 50 is under low pressure or passive state, and the one end cleaning pipe 40 can be inserted in the through hole of sealing member 52 of sealing device 50.In shield machine, soil storehouse dividing plate 2 is the Tu Cang of shield machine near the side of cutterhead.So, clean pipe 40 to sequentially pass through sealing device 50, pipeline and core and enter in soil storehouse.
Clean pipe 40 and be configured to tubular structure.Clean pipe 40 and include front end and the end relative with front end.After being installed to by ball and socket base 10 in the ball and socket base installing hole of soil storehouse dividing plate 2, the opposite side of soil storehouse dividing plate 2 can be stretched in the front end cleaning pipe 40 from the side of the native storehouse dividing plate 2 of shield machine.The end cleaning pipe 40 is used for connecting cleaning solution supplying device 80.Cleaning solution supplying device 80 is for cleaning injection cleanout fluid in pipe 40, so that cleanout fluid sprays from the front end cleaning pipe 40 with the form of jet.Cleaning solution supplying device 80 can be water pump.Cleanout fluid can be water, it is also possible to add the aqueous solution of surfactant.The front end cleaning pipe 40 can be reducing, and such cleanout fluid can be bigger from the speed of the front end injection cleaning pipe 40.After cleaning pipe 40 and extending in soil storehouse, wash away cutterhead to remove the mud cake of consolidation on blocking cutterhead to cutterhead spray high-pressure jets.It addition, before cleaning pipe 40 rinses mud cake, it is also possible to utilize cleaning pipe 40 that the presumptive area of cutterhead is detected, to judge whether cutterhead condenses having mud cake.Such as, clean pipe 40 to stretch into hand of cutter by predetermined angle, design parameter according to shield machine, clean pipe 40 and can extend into certain predetermined depth and above then without mud cake, otherwise then there is mud cake, thus without opening whether Tu Cang has mud cake to observe on cutterhead, the safety of energy lifting construction personnel.
After cleaning pipe 40 is inserted in sealing device 50, injection pressure fluid in fluid pressure chamber 53, channel narrows in sealing member 52, the inwall finally making sealing member 52 is close on cleaning pipe 40, so, gapless between sealing member 52 and cleaning pipe 40, is formed between sealing member 52 and cleaning pipe 40 and seals.Sealing member 52 and the seal degree cleaned between pipe 40 depend primarily on the pressure size in fluid pressure chamber 53, and the pressure in fluid pressure chamber 53 is more high, seals more tight.When the pressure in the native storehouse of shield machine is bigger, for instance shield machine be slurry balance shield machine with pressure construction time, adopt clean pipe 40 detect mud cake or rinse mud cake, sealing device 50 be possible to prevent soil storehouse in muddy water along clean pipe 40 outer wall pour in down a chimney in operating room.According to support pressure (can be provided from shield control room), suitable injection pressure can be set and toward water filling in fluid injecting hole 56 so that sealing member 52 tightly wraps cleaning pipe 40.So can avoid under Tu Cang band pressure condition, the artificial soil storehouse operation that enters with pressure, safety during raising Operating Pressure, mud cake being detected and cleaning.
Preferably, sealing member 52 is tubular.Fluid pressure chamber 53 is circumferentially positioned on the periphery wall of sealing member 52.When being filled with fluid in fluid pressure chamber 53, the pressure in fluid pressure chamber 53 is uniformly applied to the periphery of sealing member 52, and sealing member 52 stress is more reasonable.Simultaneously during sealing member 52 periphery uniform stressed, sealing member 52 uniform shrinkage, sealing member 52 and the sealing effectiveness cleaned between pipe 40 are better.
Preferably, shell 75 includes cylinder the 51, first limiting section 76 and the second limiting section 72.Cylinder 51 is configured to tubular structure.First limiting section 76 and the second limit part are arranged in this cylinder 51.First limiting section 76 and the first limiting section 72 are relatively fixed setting.First limiting section 76 and second is spacing spaced-apart next.First limiting section 76 and the first limiting section 72 are preferably arranged on the two ends of cylinder 51.Sealing member 52 is arranged in cylinder 51, and its two ends are connected to the first limiting section 76 and the first limiting section 72 respectively.So, the first limiting section 76 and the first limiting section 72 limit sealing member 52 moving axially relative to cylinder 51, to be fixed in cylinder 51 by sealing member 52.
Preferably, the first limiting section 76 is the bulge loop radially-inwardly protruded from cylinder 51.First limiting section 76 of this structure acts on the distribution of forces of sealing member 52 end evenly.Meanwhile, the first limiting section 76 forms sealing, the further sealing effectiveness promoting fluid pressure room 53 with the end of sealing member 52.
Preferably, sealing device 50 also includes gland 71.Gland 71 is arranged on one end of cylinder 51.First limiting section 72 is arranged on gland 71.First limiting section 72 is configured to stretch into the bulge loop in cylinder 51.Gland 71 is pressed towards cylinder 51 so that the first limiting section 72 is connected to sealing member 52 and deviates from one end of the first limiting section 76.So, the first limiting section 72 acts on the distribution of forces of sealing member 52 end evenly.Simultaneously as the first limiting section 76 and the first limiting section 72 are all configured to annular, the distribution of forces that the first limiting section 76 and the first limiting section 72 act on sealing member 52 is more balanced, and sealing member 52 stress is more reasonable.It is highly preferred that with bolts between gland 71 and cylinder 51, the so convenient pressure regulated between gland and sealing member 52, also help the axis trimming of sealing member 52 as parallel with cylinder 51.
Preferably, the top of the first limiting section 76 is provided with oils and fats annular groove 57.Cylinder 51 is additionally provided with the greasing passage 58 running through cylinder 51 and connection oils and fats annular groove 57.Grease is injected so that grease fills full oils and fats annular groove 57 in greasing passage 58.When cleaning pipe 40 and being inserted into sealing device 50, grease is applied to the outer peripheral face cleaning pipe 40, cleans pulling and pushing of pipe 40 more flexible.Further, since the outer surface cleaning pipe 40 is coated with grease, clean the sealing between pipe 40 and sealing member 52 more reliable.
Preferably, sealing member 52 includes multiple sealing ring.Sealing ring can be manufactured by elastomeric material.Multiple sealing rings are coaxially disposed, and stack gradually.Two adjacent sealing rings are pressed together mutually, seal so that being formed between adjacent two sealing rings.Multiple sealing rings can be clamped together by the first limiting section 76 and the first limiting section 72.Multiple sealing rings are cylindrical in shape under impaction state.The sealing member 52 of this structure is easier to be installed in shell 75.Owing to the contact between adjacent sealing ring is not tight, during deformation quantity difference between adjacent two sealing rings, impact between the two is less, this makes the difference degree of deformation quantity between adjacent two sealing ring bigger, and the sealing effectiveness of sealing device generally depends on the sealing effectiveness at the maximum sealing ring place of deformation quantity, thus, the overall sealing effectiveness of sealing device 50 promotes.
Preferentially, the internal perisporium depression of cylinder 51 forms groove.Fluid pressure chamber 53 is enclosed by the periphery wall of the inwall of this groove Yu sealing member 52 and forms.After fluid is filled in fluid pressure chamber 53, the pressure perpendicular of fluid acts on the periphery wall of sealing member 52, and sealing member 52 stress is more reasonable.Fluid pressure in fluid pressure chamber 53 can be set to less.
Preferably, the groove on cylinder 51 internal perisporium includes cannelure 55.Cannelure 55 and cylinder 51 are coaxially disposed.The width of cannelure 55 is less than the width of sealing ring.Cannelure 55 also aligns with sealing ring.Fluid pressure chamber 53 is formed between inwall and the outer wall of sealing ring of cannelure 55.Thus form the fluid pressure chamber 53 around sealing ring in sealing ring periphery, and this fluid pressure chamber 53 is tightr to fluid-tight in it.When being filled with fluid in fluid pressure chamber 53, the pressure in fluid pressure chamber 53 is uniformly applied to the periphery of sealing ring, and sealing ring stress is more reasonable, and sealing ring and the sealing effectiveness cleaned between pipe 40 are better.
Preferably, the groove on cylinder 51 internal perisporium also includes bar groove 54.Bar groove 54 is formed by the inner wall depression of cylinder 51.Cannelure 55 is provided with multiple.Bar groove 54 radially extends, and connects each bar cannelure 55.Each cannelure 55 correspondence is looped around outside a sealing ring.So, fluid pressure chamber 53 is formed between inwall and the outer wall of sealing ring of bar groove 54, cannelure 55.Owing to bar groove 54 is communicated in each bar cannelure 55, injecting fluid in fluid injecting hole 56, fluid is entered in each cannelure 55 by bar groove 54.Fluid in each cannelure 55 is radially-inwardly oppressed and the sealing ring corresponding to cannelure 55, and so, each sealing ring all can abut against with cleaning pipe 40 equably, and the sealing property of sealing device 50 is better.
Preferably, sealing device 50 also includes lip-type sealing ring 59.Lip-type sealing ring 59 and cylinder 51 are coaxially disposed.Lip-type sealing ring 59 is arranged on cylinder 51 one end near core 20.The lip of lip seal circle is towards core 20.When cleaning pipe 40 and outwards extracting out, lip seal circle can be wiped off and clean the muddy water of the overwhelming majority on pipe 40, prevents muddy water from entering into the opposite side of lip seal circle simultaneously.Lip-type sealing ring 59 can this be arranged between end cap 74 and cylinder 51, and clamping by end cap 74 and cylinder 51.
Preferably, the outer peripheral face of core 20 is sphere, is provided with the passage 21 extended along its axis in core 20.In the present embodiment, core 20 is configured to spherical.Ball and socket base 10 is provided with installing hole, and this installing hole is used for holding core 20.The internal perisporium of installing hole is sphere.The outer peripheral face of this sphere and core 20 matches, and is connected so that forming ball-and-socket between core 20 with ball and socket base 10.When core 20 is installed in ball and socket base 10, the both sides of the through ball and socket base 10 of passage 21 in core 20.Being usually provided with ball and socket base installing hole on the native storehouse dividing plate 2 of shield machine, ball and socket base 10 is arranged in the ball and socket base installing hole of native storehouse dividing plate 2 of shield machine.So, the through soil of the passage 21 in core 20 storehouse dividing plate 2.
As it is shown on figure 3, after ball and socket base 10 is installed on soil storehouse dividing plate 2, the front end cleaning pipe 40 can be passed the passage 21 in core 20 and enter Tu Cang and the mud cake on cutterhead is rinsed, to remove mud cake.Again owing to core 20 and ball and socket base 10 are ball-joint, core 20 can rotate in ball and socket base 10, thus can swing and clean pipe 40 to adjust the flushing angle cleaning pipe 40, so that rinse the pipe flushing scope to cutterhead to become big, thus, on cutterhead, solidifying incrusted most areas all can be washed into.
Preferably, the end face of ball and socket base 10 caves inward formation inner conical surface.The end face of the inner conical surface shape of ball and socket base 10 makes to clean pipe 40 and is more difficult to produce to interfere with ball and socket base 10, and the scope cleaning pipe 40 swing is bigger, thus the clean range of cutterhead is bigger.
Preferably, ball and socket base 10 includes the first blind flange 11 and the second blind flange 12.First blind flange 11 and the second blind flange 12 are annular.The inwall of the endoporus of the first blind flange 11 and the second blind flange 12 is hemisphere face.First blind flange 11 and the second flange this be and removably connect, for instance bolt connects.When first blind flange 11 and the second blind flange 12 are in connection status, the endoporus of the first blind flange 11 and the second blind flange 12 aligns, and the enlarged diameter section of the enlarged diameter section of the endoporus of the first blind flange 11 and the second blind flange 12 docks mutually.So, the endoporus of the first blind flange 11 and the second blind flange 12 is combined into the installing hole of ball and socket base 10.So design is more convenient installs core 20 in ball and socket base 10.
Preferably, sealing ring 13 it is additionally provided with between ball and socket base 10 and core 20.Sealing ring 13 for sealing the gap between core 20 and ball and socket base 10, with prevent fluid or dust from the side of ball and socket base 10 gap between core 20 and ball and socket base 10 and be flowed into the opposite side of ball and socket base 10.Sealing ring 13 installing hole being preferably with ball and socket base 10 is coaxially disposed.Sealing ring 13 can arrange multiple to strengthen sealing effectiveness.Such as, the endoporus of the first blind flange 11 and the second blind flange 12 is provided with the cannelure caved inward, and two sealing rings 13 are separately positioned in two grooves of the first blind flange 11 and the second blind flange 12.It is highly preferred that be provided with the sealing ring 15 coaxial with the installing hole of ball and socket base 10 between the first blind flange 11 and the second blind flange 12, so, the sealing property between the first blind flange 11 and the second blind flange 12 is better.
Preferably, rinser 1 also includes being arranged between sealing device 50 and core 20 for the first valve 31 cleaned on the passage that pipe 40 passes through.First valve 31 is used for being turned on and off this passage.First valve 31 is generally opened when carrying out mud cake detection or mud cake rinses operation, is retracted into the first valve 31 deviates from a side closure of core 20 cleaning pipe 40, and during to avoid not operation, the muddy water in soil storehouse pours in down a chimney in operating room.
Preferably, rinser 1 also includes the second valve 32 being arranged between the first valve 31 and sealing device 50 for cleaning on the passage that pipe 40 passes through, and is arranged on water filling port 34 between the first valve 31 and the second valve 32.Water filling port 34 is provided with the 3rd valve 33, to switch water filling port 34.Water filling port 34 is used for connecting water filling device, and water filling device is used for water filling in water filling port 34.Before cleaning pipe 40 carries out operation, it is first turned on the first valve 31 and the 3rd valve 33, simultaneously closes off the second valve 32, adopt water filling device to water filling in soil storehouse, will rinse well for the impurity cleaned in the passage that pipe 40 passes through.When cleaning pipe 40 and carrying out operation, the first valve 31 and the second valve 32 are opened, the 3rd valve 33 is closed.First valve the 31, second valve 32 and the 3rd valve 33 can be ball valves.
Preferably, rinser 1 also includes the Pressure gauge 35 that is arranged between the first valve 31 and the second valve 32.Pressure gauge 35 is for detecting the pressure of the fluid media (medium) between the first valve 31 and the second valve 32.Thus can monitor the fluid pressure in this passage when cleaning the passage passed through for cleaning pipe 40, the power of water filling device can be regulated to avoid this fluid pressure lower than support pressure or excessive beyond support pressure according to this fluid pressure.
Preferably, rinser 1 also includes a support component 60.Support bar 62 that the first hinged seat 61 that support component 60 includes being arranged on the pipeline 30 between the first valve 31 and core 20, one end are connected with the first hinged seat 61 bearing pin and the second hinged seat 63 that the other end with support bar 62 is hinged.Second hinged seat 63 is connected for fixing with soil storehouse dividing plate 2.When not carrying out operation, a support component 60 can fix the rotation of core 20.When needs carry out operation, it is only necessary to extracted out by the bearing pin connecting the first hinged seat 61 and support bar 62, core 20 can recover the ability rotated.
Preferably, as shown in Figure 4, clean pipe 40 and include straight length 41 and nozzle 42.Nozzle 42 is arranged on the front end of straight length 41, is used for spraying cleanout fluid.It is highly preferred that as shown in Figure 4, nozzle 42 has been disposed radially liquid outlet.Such nozzle 42 can along the outside jet fluid of the radial direction of straight length 41.Such nozzle 42 can clean each corner in soil storehouse, is particularly advantageous for relatively sheltering position for cutterhead periphery, cutterhead front etc. and is rinsed.
Preferably, as it is shown in figure 5, clean pipe 40 also include probe tube 43.Probe tube 43 is the tubular structure of endcapped.For removably connecting between straight length 41 and nozzle 42.Also for removably connecting between straight length 41 and probe tube 43.Probe tube 43 and straight length 41 are coaxially disposed.Specifically, threadeding with being formed between nozzle 42 in the front end of straight length 41, the front end of straight length 41 also can be formed with the bottom of probe tube 43 and threaded.Probe tube 43 is for sampling mud cake in the detection mud cake stage.After probe tube 43 is installed to the front end of straight length 41, the opening of probe tube 43 forward, is retracted after probe tube 43 is inserted into mud cake, is accommodated the sample 90 of mud cake in probe tube 43.This sample 90 can be carried out Tu Yan and analyze judgement by technical staff further.
Preferably, the end wall of the front end of probe tube 43 is most advanced and sophisticated.So more convenient probe tube 43 cuts mud cake sample 90.It is highly preferred that the end face of the front end of probe tube 43 is inner conical surface.
Preferably, as shown in Figure 6, probe tube 43 includes staving 45 and the push rod 44 being arranged in staving 45.It is barrel-shaped that staving 45 is configured to substantially.The bottom of staving 45 offers axially extended through hole.Push rod 44 includes slide block 48 and the straight-bar 47 extended from slide block 48.Slide block 48 is arranged in staving 45 and straight-bar 47 runs through through hole.The bottom of staving 45 is provided with the riffled tube 79 coaxial with staving 45.The front end of straight length 41 is provided with the male-pipe 49 coaxial with straight length 41.This male-pipe 49 matches with riffled tube 79.Preferably, male-pipe 49 is conical pipe.So at dismounting probe tube 43, the gap between male-pipe 49 and riffled tube 79 will not produce huge swabbing action.When mud cake is sampled, straight-bar 47 is inserted in male-pipe 49 and extends in straight length 41.So, when the sample of the detection bar taking-up soil body is after 90s, being taken off by probe tube 43, be then pushed in staving 45 by straight-bar 47 from straight length 41, sample 90 is ejected by slide block 48, and sample 90 will not fragmentation.The collection of the sample 90 of the so more convenient soil body.It is highly preferred that slide block 48 is the pied geometry coaxial with probe tube 43.Straight-bar 47 is perpendicular to slide block 48, and stretches out from the center of slide block 48.It is highly preferred that be provided with the sealing ring 46 being sleeved on straight-bar 47 in through hole bottom staving 45, sealing ring 46 is for the gap between inwall and the straight-bar 47 of the through hole bottom sealed barrel 45.
Although by reference to preferred embodiment, invention has been described, but without departing from the scope of the invention, it is possible to it is carried out various improvement and parts therein can be replaced with equivalent.Especially, as long as being absent from structural hazard, the every technical characteristic being previously mentioned in each embodiment all can combine in any way.The invention is not limited in the specific embodiment disclosed in literary composition, but include all technical schemes falling in scope of the claims.
Claims (11)
1. a sealing device, it is characterised in that including:
Shell；
And be arranged in described shell and there is flexible or elastic sealing member, the passage being provided with in described sealing member,
Wherein, between described shell and described sealing member, form fluid pressure chamber, in described fluid pressure chamber, inject fluid the cross-sectional area of described passage can be made to have the trend of reduction.
2. sealing device according to claim 1, it is characterised in that described sealing member is tubular, described fluid pressure chamber surrounds the periphery wall of described sealing member around the axis of described sealing member.
3. sealing device according to claim 2, it is characterised in that described shell includes cylinder and is arranged at the first interior and spaced-apart limiting section of described cylinder and the second limiting section,
Described sealing member is arranged in described cylinder, and two ends are connected to the first limiting section and the second limiting section respectively.
4. sealing device according to claim 3, it is characterised in that described first limiting section is the bulge loop radially-inwardly protruded from described cylinder.
5. sealing device according to claim 4, it is characterised in that described shell also includes the gland being arranged on the coaxial with described cylinder of described cylinder one end and being pressed towards described cylinder,
Described second limiting section is the bulge loop that described gland extend in described cylinder.
6. sealing device according to claim 5, it is characterised in that with bolts between described gland and described cylinder.
7. the sealing device according to any one of claim 2 to 6, it is characterised in that the periphery wall of inwall and described sealing member that described fluid pressure chamber is formed groove by the internal perisporium depression of described cylinder encloses and forms.
8. sealing device according to claim 7, it is characterised in that described sealing member includes multiple sealing rings that are multiple that be coaxially disposed and that stack gradually, and the plurality of sealing ring is tightly pressed together.
9. sealing device according to claim 8, it is characterised in that described groove includes a plurality of cannelure that is coaxial with described sealing member and that align one by one with described sealing ring, and the width of described cannelure is less than the width of described sealing ring.
10. sealing device according to claim 9, it is characterised in that described groove also includes bar groove that is that radially extend and that connect cannelure described in each bar.
11. one kind for rinsing the rinser of cutter head of shield machine, it is characterised in that includes the sealing device as according to any one of claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224303.0A CN105728379A (en) | 2016-04-12 | 2016-04-12 | Cleaning device for washing shield tunneling machine cutterhead and sealing device thereof |
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| CN201610224303.0A CN105728379A (en) | 2016-04-12 | 2016-04-12 | Cleaning device for washing shield tunneling machine cutterhead and sealing device thereof |
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| CN105728379A true CN105728379A (en) | 2016-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801606A (en) * | 2017-03-22 | 2017-06-06 | 中铁工程装备集团有限公司 | The sealing and connecting device of a kind of middle shield and tail shield, shield machine shield body and shield machine |
| CN108374669A (en) * | 2018-03-22 | 2018-08-07 | 辽宁三三工业有限公司 | A kind of tearing cutter |
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| US2155628A (en) * | 1937-11-10 | 1939-04-25 | John C Williams | Bearing seal |
| US2761709A (en) * | 1953-04-03 | 1956-09-04 | Syntron Co | Rotary shaft seal |
| CN1056926A (en) * | 1990-05-30 | 1991-12-11 | 布隆福斯造船公司 | The rotation shaft seal, the stern tube that is specially adapted to unit of axle of ship propellor seals |
| CN2515493Y (en) * | 2001-12-11 | 2002-10-09 | 王磊 | Valve rod 'reverse Y-type' sealing ring |
| US20050199269A1 (en) * | 2004-03-10 | 2005-09-15 | Scott Heil | Cleaning tanks |
| CN201126021Y (en) * | 2007-12-11 | 2008-10-01 | 林天伟 | Radial pressing type hydraulic seal cavity |
| CN101280847A (en) * | 2007-12-24 | 2008-10-08 | 沈阳重型机械集团有限责任公司 | Main bearing multi-layer sealing structure of complete section tunnel boring machine |
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| CN106801606A (en) * | 2017-03-22 | 2017-06-06 | 中铁工程装备集团有限公司 | The sealing and connecting device of a kind of middle shield and tail shield, shield machine shield body and shield machine |
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| CN108374669A (en) * | 2018-03-22 | 2018-08-07 | 辽宁三三工业有限公司 | A kind of tearing cutter |
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