CN113426749B - Shield tunneling machine mud cake clearing device and clearing method - Google Patents
Shield tunneling machine mud cake clearing device and clearing method Download PDFInfo
- Publication number
- CN113426749B CN113426749B CN202110820429.5A CN202110820429A CN113426749B CN 113426749 B CN113426749 B CN 113426749B CN 202110820429 A CN202110820429 A CN 202110820429A CN 113426749 B CN113426749 B CN 113426749B
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- cutter head
- mud
- machine
- cleaning
- shield tunneling
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- 230000005641 tunneling Effects 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004140 cleaning Methods 0.000 claims abstract description 98
- 230000002441 reversible effect Effects 0.000 claims abstract description 22
- 239000002689 soil Substances 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 210000001595 mastoid Anatomy 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 230000003749 cleanliness Effects 0.000 abstract description 3
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
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
- B08B3/022—Cleaning travelling work
-
- B08B1/165—
-
- B08B1/32—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention relates to a mud cake clearing device and a clearing method of a shield machine, wherein the device comprises a fan, a mud suction machine and a main cleaning turntable; the main cleaning turntable is connected with a cutter head panel of the shield tunneling machine and is used for cleaning mud cakes on a cutter head of the shield tunneling machine; the fan is arranged behind the cutter head panel, is positioned above the main cleaning turntable and is used for generating cold air; the mud suction machine is arranged behind the cutter head panel and is positioned below the main cleaning turntable and used for generating suction. According to the technical scheme, the mud cakes are cleaned in a cleaning turntable mode, a reverse cleaning method opposite to the rotation direction of the cutter head is realized through a reverse rotating shaft, and resources are saved; the fan is adopted for assisting cleaning, so that the cleaning speed can be increased, the temperature of a cutter head panel can be effectively reduced, and the abrasion condition of the cutter can be effectively delayed; the suction dredge not only effectively accelerates the cleaning speed of mud cakes, but also can accelerate the collection work of falling soil, transport the soil to a soil bin, and simultaneously guarantee the cleanliness of the empty bin behind the back of the cutter disc panel of the shield tunneling machine.
Description
Technical Field
The invention relates to the field of manufacturing of auxiliary equipment of a shield machine, in particular to a mud cake removing device and a mud cake removing method for the shield machine.
Background
At present, the shield machine is widely applied to excavating underground tunnels and is well known for economy and safety. The shield tunneling machine comprises a cutter head, a cutter head and a cutter head, wherein in the tunneling process of the shield tunneling machine, the cutter head needs to continuously cut a soil body so that the shield tunneling machine can smoothly advance, but part of mud cakes are often formed into mud cakes and adhered to the cutter head due to the fact that the temperature in the cutting process is continuously increased or a muck modifier does not play a good role, so that the torque of the cutter head is increased, the temperature is increased, the cutter head is finally seriously abraded, the shield tunneling machine is forced to stop to replace a cutter, the tunneling speed of the shield tunneling machine is seriously influenced, and the construction period is delayed.
The problem of cleaning cutter head mud cakes is not well solved all the time, the cleaning capacity is not in place in the traditional cleaning mode, the traditional cleaning mode needs to be stopped for cleaning, but the traditional cleaning mode needs to pass through a shield machine quickly and stably when the shield machine passes through some building areas, and the condition of stopping for cleaning is not met. Therefore, the existing device for cleaning mud cakes on the cutter head of the shield machine is very urgent, and the mud cakes formed on the cutter head can be cleaned without stopping the machine.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a mud cake removing device and a mud cake removing method for a shield tunneling machine.
The above technical object of the present invention will be achieved by the following technical solutions.
A mud cake clearing device of a shield machine comprises a fan, a mud suction machine and a main cleaning turntable;
the main cleaning turntable is connected with a cutter head panel of the shield tunneling machine and used for removing mud cakes on the cutter head;
the fan is arranged behind the cutter head panel, is positioned above the main cleaning turntable and is used for generating cold air;
the suction dredge is arranged behind the cutter head panel and below the main cleaning turntable and used for generating suction.
The shield machine mud cake clearing device further comprises a reverse rotating shaft and a connecting shaft, the reverse rotating shaft is arranged at the center of the cutter head panel, one end of the connecting shaft is connected with the reverse rotating shaft, and the other end of the connecting shaft is connected with the main cleaning turntable.
The above aspect and any possible implementation manner further provide an implementation manner, in which the main cleaning turntable includes a scraper and a spray head, and the scraper is disposed on a circumference of the main cleaning turntable; the spray head is arranged on the disc surface of the main cleaning turntable.
The above aspect and any possible implementation manner further provide an implementation manner, wherein the number of the scrapers is at least 4, the scrapers are integrally in a wedge-shaped structure, and the base of each scraper is triangular.
The above aspects and any possible implementations further provide an implementation in which the doctor blade is coated with a dust-proof wear-resistant coating.
The above aspect and any possible implementation further provide an implementation in which the edge surface of the scraper is at an acute angle to the face plate of the cutter head.
The above aspect and any possible implementation further provide an implementation in which the spray heads are high-pressure water spray heads, and the number and positions of the high-pressure water spray heads on the disk surface can be set arbitrarily.
The above aspect and any possible implementation further provides an implementation in which the suction dredge includes a suction hydraulic motor for applying a downward force to the muck behind the cutterhead.
The above aspects and any possible implementation manner further provide an implementation manner, and the dustproof and wearable coating surface is provided with mastoid structures with diameters of 6-8 microns.
The invention also provides a method for removing mud cakes of the shield machine, which is realized by adopting the device for removing mud cakes of the shield machine and comprises the following steps:
cleaning: in the tunneling process of the shield tunneling machine, the cutter head panel rotates and simultaneously drives the connecting shaft to rotate through the reverse rotating shaft, the connecting shaft rotates and simultaneously drives the main cleaning turntable to rotate reversely at the same speed, and a scraper on the main cleaning turntable scrapes and cleans mud cakes on the cutter head panel in the rotating process;
auxiliary cleaning: when cleaning, the spray head on the main cleaning turntable sprays water to the cutter head panel to soften mud cakes; the fan is started to convey high-wind-force cold air, the temperature of the cutter head panel is reduced, and meanwhile downward pressure is applied to the residual mud cakes, so that auxiliary cleaning is carried out;
collecting and warehousing: mud cakes falling from the cutter head panel in the cleaning and auxiliary cleaning processes are collected by the mud suction machine and enter the soil bin of the shield machine.
The invention has the beneficial technical effects
The shield machine mud cake clearing device provided by the embodiment of the invention comprises a fan, a mud suction machine and a main cleaning turntable; the main cleaning turntable is connected with a cutter head panel of the shield tunneling machine and is used for cleaning mud cakes of the cutter head of the shield tunneling machine; the fan is arranged behind the cutter head panel, is positioned above the main cleaning turntable and is used for generating cold air; the suction dredge is arranged behind the cutter head panel and below the main cleaning turntable and used for generating suction.
The invention can realize synchronous cleaning of the cutter head mud cake of the shield machine, realizes high efficiency and rapidness of mud cake cleaning, and improves the safety and efficiency of shield machine construction. Compared with the prior art, the advantages are as follows:
(1) the synchronous clearing of the cutter head mud cakes in the tunneling process of the shield tunneling machine is realized, the risk of manual clearing is avoided, the economic resources are saved, and the cleaning efficiency is improved.
(2) The method for auxiliary cleaning by the fan and the suction dredge ensures that the cleaning of the cutter head mud cake of the shield machine is more effective and faster.
(3) The blower is adopted to assist in clearing, so that the clearing speed can be increased, the temperature of a cutter head panel can be effectively reduced, and the abrasion condition of the cutter can be effectively delayed.
(4) The adoption of the suction dredge can effectively accelerate the mud cake clearing speed, accelerate the collection work of the fallen soil, convey the fallen soil to the soil bin, and simultaneously ensure the cleanliness of the empty bin behind the back of the cutter disc panel of the shield tunneling machine.
(5) The mud cake is cleaned in a cleaning turntable mode, and a reverse cleaning method opposite to the rotation direction of the cutter head is realized through a reverse rotation shaft, so that a large amount of resources are saved.
Drawings
Embodiments of the invention are described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram illustrating the connection between a face plate and a reverse rotating shaft of a shield tunneling machine according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a mud cake removing device of a shield tunneling machine in an embodiment of the invention;
FIG. 3 is a right front view schematically illustrating a mud cake removing device of a shield tunneling machine according to an embodiment of the present invention;
FIG. 4 is a schematic front view of a scraper of a mud cake removing device of a shield tunneling machine according to an embodiment of the invention;
fig. 5 is an enlarged schematic view of the structure of the dust-proof wear-resistant coating on the surface of the scraper in the embodiment of the invention.
In the figure: 1, a cutter head panel; 2, reversely rotating the shaft; 3 connecting the shaft; 4, scraping a cutter; 5, a suction dredge; 6, a fan; 7, a spray head; 8 suction hydraulic motor.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description is made with reference to the accompanying drawings and specific examples, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-2, the mud cake removing device of the shield machine of the present invention comprises a fan 6, a mud suction machine 5 and a main cleaning turntable;
the main cleaning turntable is connected with a cutter head panel of the shield tunneling machine and is used for removing mud cakes of the cutter head of the shield tunneling machine;
the fan 6 is arranged behind the cutter head panel, is positioned above the main cleaning turntable and is used for generating cold air;
the suction dredge 5 is arranged behind the cutter head panel and is positioned below the main cleaning turntable and used for generating suction.
Preferably, the cutting assembly comprises a drill rod body 13 and a drill bit 11, wherein the drill bit 11 is arranged at a bottom end opening of the drill rod body 13.
Preferably, the mud cake clearing device of the shield tunneling machine further comprises a reverse rotating shaft 2 and a connecting shaft 3, the reverse rotating shaft 2 is arranged at the center of the cutterhead panel 1, one end of the connecting shaft 3 is connected with the reverse rotating shaft 2, and the other end of the connecting shaft 3 is connected with the main cleaning turntable.
Preferably, the main cleaning turntable comprises a scraper 4 and a spray head 7, and the scraper 4 is arranged on the periphery of the main cleaning turntable; the spray head 7 is arranged on the disc surface of the main cleaning turntable.
Preferably, the number of the scrapers 4 is set to be more than 4, the whole scrapers 4 are in a wedge-shaped structure, and the base of the scrapers 4 is triangular.
Preferably, the spray heads 7 are high-pressure water spray heads, and the number and the positions of the spray heads on the disc surface can be set randomly.
The center of the cutterhead panel 1 is provided with a reverse rotating shaft 2 as shown in fig. 1, so that the effect that when the cutterhead panel 1 is input in a clockwise rotating direction, the cutterhead panel can be output in a counterclockwise rotating direction through the reverse rotating shaft in the tunneling process of the shield tunneling machine, and the rotating speed of the cutterhead panel 1 can be kept consistent.
As shown in fig. 2-3, the mud cake removing device of the shield machine of the invention comprises a fan 6, a mud suction machine 5 and a main cleaning turntable. The counter rotating shaft 2 is connected with the main cleaning turntable by a connecting shaft 3. The main cleaning turntable is provided with at least four scrapers 4 for clearing mud cakes, the scrapers of the cutter discs are cleared when the shield tunneling machine tunnels, and the main cleaning turntable is connected with the reverse rotating shaft 1 through the connecting shaft 3, so that the cutter disc panel 1 of the shield tunneling machine can be driven to rotate reversely by the connecting shaft 3 when rotating clockwise, and corresponding power is provided for clearing the mud cakes. A plurality of high pressure water spray nozzles 7 are installed on the left side of the main cleaning turntable, the high pressure water spray nozzles 7 are used for softening mud cakes formed on a cutter head panel, the cleaning difficulty can be reduced, the form, the number and the arrangement positions of the high pressure water spray nozzles 7 are not limited, and corresponding adjustment can be carried out according to actual engineering requirements. The scrapers 4 are sequentially arranged on the main cleaning turntable, and the included angle between the surface layer of the cutting edge and the cutter head panel 1 is an acute angle, so that mud cakes formed on the cutter head 1 can be scraped off conveniently in the rotating process. Fan 6 arranges behind blade disc panel 1, and main clean carousel top, fan 6 can continuously provide big wind-force cold wind, and mud cake applys downward pressure behind the blade disc, and its speed that drops with higher speed makes things convenient for scraper 4 work, and on the other hand cold wind can reduce blade disc panel 1 temperature, delays the wearing and tearing speed of blade disc, cutter. The mud suction machine 5 is arranged behind the cutter head panel 1 and below the main cleaning rotary disc, is used for collecting soil bodies excavated from a tunnel face and mud cakes to remove fallen mud when the synchronous clearing device of the shield machine cutter head mud cakes works, is provided with a suction hydraulic motor 8, can provide strong suction force, exerts downward force on the mud cakes behind the cutter head panel to accelerate the falling speed of the mud cakes, and is connected with the soil bin, so that the soil feeding speed of the soil bin is accelerated, and meanwhile, the cleanness is guaranteed.
As shown in fig. 3, which is a schematic view of the scraper of the mud cake removing device of the shield tunneling machine, according to the invention, the scraper 4 is designed in a wedge shape, the base is more stable in a triangular shape, and the upper part of the scraper 4 is designed into an oblique plane, so that the strength of the cutter is ensured, the material consumption of the cutter is reduced, the economy is better, and the cleaning of the mud cake of the cutter head is facilitated. The surface of the scraper 4 is coated with a dustproof wear-resistant coating, so that the mud cake is effectively prevented from being bonded in the working process, the self-cleaning performance is high, the damage is avoided, and the wear resistance of the cutter can be effectively improved.
As shown in fig. 5, the surface of the anti-dust wear-resistant coating used by the doctor blade 4 itself has very many tiny mastoid structures with an average size of only 6-8 microns, which are called as multiple nano-and micron-sized ultra-fine structures. The mastoid structures are arranged on the surface of the scraper 4 to form a very thin air layer only with nanometer level, when slurry falls on the surface of the scraper 4, the slurry can only contact with the mastoid structures on the surface, a spherical body is formed under the action of the surface tension of the slurry, and the slurry carries dust on the surface of the scraper 4 and then rolls out of the surface of the scraper, so that the dustproof function is tested.
The invention also provides a method for removing mud cakes of the shield machine, which is realized by adopting the device for removing mud cakes of the shield machine and comprises the following steps:
cleaning: in the tunneling process of the shield tunneling machine, the cutter head panel rotates and simultaneously drives the connecting shaft to rotate through the reverse rotating shaft, the connecting shaft rotates and simultaneously drives the main cleaning turntable to rotate reversely at the same speed, and a scraper on the main cleaning turntable scrapes and cleans mud cakes on the cutter head panel in the rotating process;
auxiliary cleaning: when cleaning, the spray head on the main cleaning turntable sprays water to the cutter head panel to soften mud cakes; the fan is started to convey high-wind-force cold air, the temperature of the cutter head panel is reduced, and meanwhile downward pressure is applied to the residual mud cakes for auxiliary removal;
collecting and warehousing: mud cakes falling from the cutter head panel in the cleaning and auxiliary cleaning processes are collected by the mud suction machine and enter the soil bin of the shield machine.
The method comprises the following specific steps:
in the tunneling process of the shield tunneling machine, the reverse rotating shaft 2 arranged at the center of the cutter head panel 1 of the shield tunneling machine can drive the connecting shaft 3 to rotate, and meanwhile, the connecting shaft 3 can keep clockwise rotation at the same speed while the cutter head 1 of the shield tunneling machine rotates anticlockwise, so that ingenious power is provided for cleaning the cutter head. The connecting shaft 3 rotates and simultaneously drives the main cleaning turntable, the wedge-shaped scrapers 4 uniformly arranged on the main cleaning turntable and the cutter head panel 1 of the shield tunneling machine realize the same-speed reverse rotation, and an included angle between the surface of a cutting edge of each scraper 4 and the cutter head panel 1 is an acute angle, so that the scrapers 4 can synchronously clean mud cakes on the cutter head panel 1 in the rotating process. Meanwhile, the high-pressure water spray nozzle 7 arranged on the left side of the main cleaning turntable sprays water on the cutter head panel 1, so that the mud cake softening effect can be realized, a fan above the main cleaning turntable is started to convey high-wind-force cold air, the temperature of the cutter head panel 1 is reduced, downward pressure is applied to the mud cake, and the auxiliary cleaning effect is achieved. The soil body and the mud cake that the shield constructs the machine and excavates and drive the completion drop from cutter head panel 1, and suction dredge 5 has been arranged to the below, and suction dredge 5 provides powerful suction through the suction hydraulic motor 8 of assembly when collecting the sediment that drops, sucks some mud cakes that are difficult for dropping on the cutter head panel 1 down, suction dredge rear and soil storehouse access connection, and the mud cake or the sediment that drop are put into the soil storehouse. The cleanliness of the back of the cutterhead panel 1 can be better maintained in the case of accelerated falling soil collection. The cleaning efficiency of the shield machine cutter disc mud cake is greatly improved by the shield machine cutter disc mud cake cleaning scheme, the trouble of stopping and cleaning is avoided, and the convenience and the safety of the construction of the shield machine are improved.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The mud cake clearing device of the shield machine is characterized by comprising a fan, a mud sucking machine and a main cleaning turntable;
the main cleaning turntable is connected with a cutter head panel of the shield tunneling machine and used for removing mud cakes on the cutter head;
the fan is arranged behind the cutter head panel, is positioned above the main cleaning turntable and is used for generating cold air;
the mud suction machine is arranged behind the cutter head panel, is positioned below the main cleaning turntable and is used for generating suction force;
the mud cake clearing device of the shield tunneling machine further comprises a reverse rotating shaft and a connecting shaft, the reverse rotating shaft is arranged at the center of the cutter head panel, one end of the connecting shaft is connected with the reverse rotating shaft, and the other end of the connecting shaft is connected with the main cleaning turntable;
the main cleaning rotary disc comprises a scraper and a spray head, and the scraper is arranged on the periphery of the main cleaning rotary disc;
the number of the spray heads is at least 4, the number of the scrapers is at least 4, the whole scrapers are of a wedge-shaped structure, and the bases of the scrapers are triangular.
2. The shield tunneling machine mud cake clearing device of claim 1, wherein the scraper is coated with a dust-proof wear-resistant coating.
3. The mud cake removing device of a shield tunneling machine according to claim 1, wherein the included angle formed by the blade edge surface of the scraper and the cutter head panel is an acute angle.
4. The mud cake removing device of the shield tunneling machine as claimed in claim 1, wherein the nozzles are high pressure water nozzles, and the number and the positions of the nozzles on the disk surface can be set arbitrarily.
5. The shield tunneling machine mud cake clearing apparatus of claim 1, wherein the mud suction machine includes a suction hydraulic motor for applying a downward force to the debris behind the cutterhead.
6. The mud cake removing device of the shield tunneling machine according to claim 2, wherein the surface of the dustproof wear-resistant coating is provided with mastoid structures with diameters of 6-8 microns.
7. A mud cake removing method of a shield tunneling machine is realized by adopting the mud cake removing device of the shield tunneling machine according to any one of claims 1 to 6, and is characterized by comprising the following steps:
cleaning: in the tunneling process of the shield tunneling machine, the cutter head panel rotates and simultaneously drives the connecting shaft to rotate through the reverse rotating shaft, the connecting shaft rotates and simultaneously drives the main cleaning turntable to rotate reversely at the same speed, and a scraper on the main cleaning turntable scrapes and cleans mud cakes on the cutter head panel in the rotating process;
auxiliary cleaning: when cleaning, the spray head on the main cleaning turntable sprays water to the cutter head panel to soften mud cakes; the fan is started to convey high-wind-force cold air, the temperature of the cutter head panel is reduced, and meanwhile downward pressure is applied to the residual mud cakes, so that auxiliary cleaning is carried out;
collecting and warehousing: mud cakes falling from the cutter head panel in the cleaning and auxiliary cleaning processes are collected by the mud suction machine and enter the soil bin of the shield machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110820429.5A CN113426749B (en) | 2021-07-20 | 2021-07-20 | Shield tunneling machine mud cake clearing device and clearing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110820429.5A CN113426749B (en) | 2021-07-20 | 2021-07-20 | Shield tunneling machine mud cake clearing device and clearing method |
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| Publication Number | Publication Date |
|---|---|
| CN113426749A CN113426749A (en) | 2021-09-24 |
| CN113426749B true CN113426749B (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110820429.5A Active CN113426749B (en) | 2021-07-20 | 2021-07-20 | Shield tunneling machine mud cake clearing device and clearing method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201507313U (en) * | 2009-09-04 | 2010-06-16 | 广东华隧建设股份有限公司 | Mudlining-prevention device of cutter of shield machine |
| CN109057812A (en) * | 2018-10-25 | 2018-12-21 | 重庆大学 | A kind of anti-mud cake flushing system of shield machine |
| CN109681226A (en) * | 2019-01-24 | 2019-04-26 | 重庆宏工工程机械股份有限公司 | Trenchless pipe jacking drilling machine |
| CN209924995U (en) * | 2019-12-03 | 2020-01-10 | 中铁九局集团第四工程有限公司 | Earth pressure balance shield constructs quick-witted blade disc mud cake scraping device |
| CN112647964A (en) * | 2020-12-28 | 2021-04-13 | 中铁十一局集团有限公司 | Super large diameter shield constructs ordinary pressure blade disc mud cake clearing device |
-
2021
- 2021-07-20 CN CN202110820429.5A patent/CN113426749B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201507313U (en) * | 2009-09-04 | 2010-06-16 | 广东华隧建设股份有限公司 | Mudlining-prevention device of cutter of shield machine |
| CN109057812A (en) * | 2018-10-25 | 2018-12-21 | 重庆大学 | A kind of anti-mud cake flushing system of shield machine |
| CN109681226A (en) * | 2019-01-24 | 2019-04-26 | 重庆宏工工程机械股份有限公司 | Trenchless pipe jacking drilling machine |
| CN209924995U (en) * | 2019-12-03 | 2020-01-10 | 中铁九局集团第四工程有限公司 | Earth pressure balance shield constructs quick-witted blade disc mud cake scraping device |
| CN112647964A (en) * | 2020-12-28 | 2021-04-13 | 中铁十一局集团有限公司 | Super large diameter shield constructs ordinary pressure blade disc mud cake clearing device |
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| CN113426749A (en) | 2021-09-24 |
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