CN117718271B - Shield construction mud cake stripping system and method thereof - Google Patents

Shield construction mud cake stripping system and method thereof Download PDF

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Publication number
CN117718271B
CN117718271B CN202410179925.0A CN202410179925A CN117718271B CN 117718271 B CN117718271 B CN 117718271B CN 202410179925 A CN202410179925 A CN 202410179925A CN 117718271 B CN117718271 B CN 117718271B
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China
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arc
fixedly connected
cleaning cover
poking rod
toothed plate
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CN202410179925.0A
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CN117718271A (en
Inventor
方泽龙
高超
刘俊
李昂
吴韬
胡如成
李杨
王恋
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Construction Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
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Construction Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
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Priority to CN202410179925.0A priority Critical patent/CN117718271B/en
Publication of CN117718271A publication Critical patent/CN117718271A/en
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Abstract

The invention discloses a shield construction mud cake stripping system and a method thereof, wherein the shield construction mud cake stripping system comprises a mounting frame, the mounting frame is fixedly connected with an arc-shaped guide rail, the arc-shaped guide rail is in sliding connection with a sliding seat, the sliding seat is fixedly connected with a supporting plate, the supporting plate is fixedly connected with a hydraulic oil cylinder, the telescopic end of the hydraulic oil cylinder is fixedly connected with a cleaning cover, the upper side of the cleaning cover is fixedly connected with an injection pipe, the bottom of the cleaning cover is provided with a drain hole, the cleaning cover is rotationally connected with a poking rod, the poking rod and a rotating shaft of the cleaning cover are provided with a first torsion spring, and the outer wall of the poking rod is uniformly provided with jet holes; the end of the poking rod extending out of the cleaning cover is also provided with an extendable arc plate. According to the invention, the sliding seat and the cutter head can synchronously rotate, in the synchronous rotation process, the hydraulic oil cylinder pushes the cleaning cover to the cutter wheel and covers one side corresponding to the cutter wheel, soil blocks embedded in the cutter wheel mounting cavity and mud cakes on the cutter wheel are firstly poked by the poking rod, so that pressurized water is convenient to flush in, and the mud cakes are easy to separate and segregate.

Description

Shield construction mud cake stripping system and method thereof
Technical Field
The invention relates to the technical field of shield cutter head cleaning and maintenance, in particular to a shield construction mud cake stripping system and a method thereof.
Background
In the tunneling process of the clay stratum, the clay on the digging surface is rolled by the cutter head, so that attached mud cakes are easily formed on the cutter surface and the inner wall of the soil bin gradually from the center position of the cutter head to the periphery, the cutting efficiency of the cutter head is reduced, the tunneling time is prolonged, the torque of the cutter head and the thrust of the shield are increased, and the fault frequency of equipment is also increased. The mud-proof system of the existing shield machine, such as a mud cake-proof flushing system of a shield machine with a patent publication number of CN109057812B, comprises a flushing pipeline, wherein the flushing pipeline is communicated with a plurality of flushing ports in a cutter head and a soil bin, and the high-pressure water or mud in the flushing pipeline can flush soil on the cutter head and the soil bin after being sprayed from the flushing ports.
However, as mud cakes are squeezed in the cutter wheel mounting cavity, the flushing pipeline needs to be flushed through for a long time, the efficiency is low, and meanwhile, in the process of in-situ renovation of the shield machine, after slurry is injected into the face, when the cutter wheel rotates on the cutter head, the friction force between the cutter wheel and the face is insufficient to enable the cutter wheel to rotate, and one surface of the cutter wheel, far away from the flushing pipeline, cannot be flushed.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a shield construction mud cake stripping system and a method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a shield constructs construction mud cake strip system, includes the mounting bracket, mounting bracket fixed connection arc guide rail, arc guide rail sliding connection slide, slide fixed connection backup pad, backup pad fixed connection hydraulic cylinder, hydraulic cylinder's telescopic end fixed connection clearance cover, clearance cover upside fixed connection injection pipe, clearance cover bottom sets up the blowdown hole, clearance cover internal rotation is connected the poking rod, and the pivot of poking rod and clearance cover sets up first torsional spring, and fixed connection force (forcing) pump in the clearance cover is equipped with the intermediate layer in the poking rod, and the poking rod outer wall evenly sets up the jet orifice, and the jet orifice is linked together with the intermediate layer, and the force (forcing) pump is linked together with the intermediate layer of poking rod through the hose;
the end of the poking rod extending out of the cleaning cover is also provided with an extendable arc plate.
Preferably, the slide seat is fixedly connected with a driving motor, a main shaft of the driving motor is fixedly connected with a driving gear, the arc-shaped guide rail is fixedly connected with an arc-shaped toothed plate, and the driving gear is meshed with the arc-shaped toothed plate.
Preferably, the arc plate comprises a plurality of flat plates which are hinged in sequence, a second torsion spring is arranged in the hinge shaft, an installation cavity is arranged in the toggle rod, a telescopic piece is arranged in the installation cavity, and the telescopic piece is used for pushing out the arc plate from the installation cavity.
Preferably, both sides of the flat plate are provided with semi-cylindrical protrusions.
Preferably, the extensible member includes first pinion rack and second pinion rack, and the installation intracavity rotates to be connected the linkage gear, and first pinion rack and second pinion rack meshing are in the linkage gear both sides, and first pinion rack and the opposite sliding connection of second pinion rack are in the installation intracavity, and first pinion rack links to each other with one of them flat board, and second pinion rack middle part sets up the boss, fixed connection supporting spring between boss and the installation intracavity wall, and second pinion rack one end stretches out the poking rod and rotates the connection gyro wheel, the inner wall fixed connection dog of clearance cover, and dog one side sets up the arc wall of slope.
Preferably, the height of installation cavity is greater than dull and stereotyped thickness, first pinion rack one end fixed connection guide post, one of them dull and stereotyped sliding connection is on the guide post, fixed connection first spring between dull and stereotyped and the guide post, and dull and stereotyped upside rotates the connection supporting wheel, and the upper sidewall interval of installation cavity sets up the arc recess, and the supporting wheel corresponds the arc recess setting.
Preferably, the outlet end of the installation cavity is fixedly connected with a rubber plate.
Preferably, one end of the poking rod is provided with an arc-shaped surface, and the front end of the flat plate is provided with an inclined surface.
The mud cake stripping method for the shield construction is used for stripping mud cakes gathered on the cutter head of the tunnel shield by adopting the mud cake stripping system.
The invention has the advantages that: according to the shield construction mud cake stripping system and the shield construction mud cake stripping method, the cutter wheel enters the range of the arc-shaped guide rail, the driving motor is matched with the limit of the arc-shaped toothed plate through the rotation of the driving gear, so that the sliding seat and the cutter head can synchronously rotate, the hydraulic cylinder pushes the cleaning cover to the cutter wheel in the synchronous rotation process, the cleaning cover covers one side corresponding to the cutter wheel, soil blocks embedded in the cutter wheel mounting cavity and mud cakes on the cutter wheel are firstly stamped by the poking rod, pressurized water is conveniently flushed in, and the mud cakes are easily broken up and isolated.
According to the invention, the flat plate of the sheet is further embedded into the mud cake at the back side (the side far away from the mounting frame) of the cutter wheel, so that in the process of in-situ renovation of the shield machine, when the cutter wheel rotates when the cutter head is filled with mud, the friction force between the cutter wheel and the face is insufficient to enable the cutter wheel to rotate, and the mud cake at the side far away from the cutter wheel can be cleaned.
According to the invention, when the supporting wheel of the last flat plate meets the arc-shaped groove in the process that the flat plate extends out of the mounting cavity, the first spring pushes all the flat plates upwards, so that the flat plates are stirred and extruded up and down to form a cavity with the width larger than that of the flat plates in the advancing process of the flat plates, water injection is facilitated, disintegration of the flat plates is accelerated, and the disintegrated flat plates are discharged conveniently after being washed away.
Drawings
FIG. 1 is a schematic view of the basic structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the tap lever acting on the cutter wheel in the present invention;
FIG. 3 is a schematic view of a tap lever according to the present invention;
FIG. 4 is a schematic view of a connection structure of a second toothed plate and a flat plate at the tail end in the present invention;
FIG. 5 is a schematic cross-sectional view of a tap lever according to the present invention;
fig. 6 is a schematic view of the present invention mounted on a cutterhead.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1-6, the mud cake stripping system for shield construction provided by the invention comprises a mounting frame 1, wherein the mounting frame 1 is fixedly connected with an arc-shaped guide rail 11, the arc-shaped guide rail 11 is in sliding connection with a sliding seat 2, the sliding seat 2 is fixedly connected with a driving motor 21, a main shaft of the driving motor 21 is fixedly connected with a driving gear 22, the arc-shaped guide rail 11 is fixedly connected with an arc-shaped toothed plate 23, the driving gear 22 is meshed with the arc-shaped toothed plate 23, the sliding seat 2 is fixedly connected with a supporting plate 3, the supporting plate 3 is fixedly connected with a hydraulic cylinder 4, a telescopic end of the hydraulic cylinder 4 is fixedly connected with a cleaning cover 5, the upper side of the cleaning cover 5 is fixedly connected with an injection pipe 51, a blow-down hole is formed in the bottom of the cleaning cover 5, the cleaning cover 5 is rotationally connected with a stirring rod 6, the stirring rod 6 and a rotating shaft of the cleaning cover 5 are provided with a first torsion spring, a pressurizing pump is fixedly connected in the cleaning cover 5, an interlayer 61 is arranged in the stirring rod 6, the outer wall of the stirring rod 6 is uniformly provided with a jet hole 62, the jet hole 62 is communicated with the interlayer 61, and the pressurizing pump is communicated with the interlayer 61 of the stirring rod 6 through a hose;
The injection pipe 51 injects pressurized water, so that the cleaning cover 5 is filled with cleaning water, the additional pressurized water is sprayed out from the jet hole 62 through the poking rod 6, mud cakes around the cutter wheel are easily separated and isolated due to the poking of the poking rod 6, and the concrete structure of water injection is a conventional structure.
The stirring rod 6 one end sets up arcwall face 611, to the cutter, sets up four stirring rods 6, and when clearance cover 5 was close to the cutter, stirring rod 6 was hit the face of cylinder of cutter through arcwall face 611, and two upper and lower stirring rods 6 of same one side all rotated and dodged and to the protruding sword shape scrubbing of cutter between, in order to improve the scrubbing effect, stirring rod 6 still can evenly set up the brush hair.
According to the invention, the rotation angle of the cutterhead is monitored through a sensor (in the prior art), when the cutterhead enters the range of the arc-shaped guide rail 11, the driving motor 21 is matched with the limit of the arc-shaped toothed plate 23 through the rotation of the driving gear 22, so that the sliding seat 2 and the cutterhead can synchronously rotate, in the synchronous rotation process, the cleaning cover 5 is pushed to the cutterhead by the hydraulic cylinder 4, one side corresponding to the cutterhead is covered, soil blocks embedded in the installation cavity of the cutterhead and mud cakes on the cutterhead are firstly stamped by the poking rod 6, pressurized water is conveniently rushed in, and the mud cakes are easily separated and isolated.
The poking rod 6 is pushed to the cutter wheel obliquely forwards, so that the poking rod 6 is inevitably rotated to avoid the mud cake, and the mud cake is further scratched, so that the mud cake is quickly cleaned by being matched with flushing.
Example 2
As shown in fig. 1 and 6, the end of the poking rod 6 extending out of the cleaning cover 5 is further provided with an extendable arc plate, the arc plate comprises a plurality of flat plates 7 hinged in sequence and a second torsion spring arranged in a hinge shaft 71, the front end of each flat plate 7 is provided with an inclined surface 711, a mounting cavity 72 is arranged in the poking rod 6, a telescopic piece is arranged in the mounting cavity 72, the telescopic piece with a conventional structure is a hydraulic rod or an electric push rod, the telescopic piece is used for pushing out the mounting cavity 72 from the arc plate, semicircular column type protrusions 73 are arranged on two sides of each flat plate 7 and used for increasing the structural strength of the flat plate 7 of a thin sheet, and the flat plate 7 is not easy to bend when pushed into a mud cake.
Adjacent two flat plates 7 form a rotatable space through inclined planes 711, the flat plates 7 extend out of the mounting cavity 72 and are influenced by torsion of the second torsion spring, and the adjacent flat plates 7 lean together to form an arc-shaped structure so as to be convenient to wind to the back side of the cutter wheel.
The invention is convenient for being further embedded into mud cakes on the back side (the side far away from the mounting frame 1) of the cutter wheel through the flat plate 7 of the sheet, so that in the process of in-situ renovation of the shield machine, the mud cakes on the side far away can be cleaned when the friction force between the cutter wheel and the palm face is insufficient to enable the cutter wheel to rotate when the cutter wheel rotates when the palm face is injected with mud.
Example 3
Referring to fig. 1 and 6, the telescopic member includes a first toothed plate 81 and a second toothed plate 82, the installation cavity 72 is rotationally connected with a linkage gear 83, the first toothed plate 81 and the second toothed plate 82 are meshed with two sides of the linkage gear 83, the first toothed plate 81 and the second toothed plate 82 are oppositely slidably connected in the installation cavity 72, the first toothed plate 81 is connected with one of the flat plates 7, a boss 84 is arranged in the middle of the second toothed plate 82, a supporting spring 85 is fixedly connected between the boss 84 and the inner wall of the installation cavity 72, one end of the second toothed plate 82 extends out of the toggle rod 6 and rotates to connect with a roller 86, a stop 87 is fixedly connected with the inner wall of the cleaning cover 5, and an inclined arc groove 88 is arranged on one side of the stop 87.
According to the invention, the water column is sprayed into the mud cake through the jet hole 62 firstly, the mud cake is softened firstly, the angle of the poking rod 6 rotates along with the further penetration of the poking rod 6, the roller 86 of the second toothed plate 82 loses the mortgage of the front end face of the stop block 87, the roller 86 rolls along the arc-shaped groove 88, the supporting spring 85 enables the second toothed plate 82 to slide towards the inner cavity of the cleaning cover 5, the linkage gear 83 pushes the first toothed plate 81 and the flat plate 7 outwards, a foundation is provided for the flat plate 7 to further advance, the flat plate 7 is facilitated to further penetrate into the mud cake on the back side of the cutter wheel, the flat plate 7 is easier to advance, the bending probability of the flat plate 7 is reduced, and the service life is prolonged.
Example 4
As shown in fig. 1 and 6, the height of the mounting cavity 72 is greater than the thickness of the flat plate 7, one end of the first toothed plate 81 is fixedly connected with the guide post 80, one flat plate 7 is slidably connected on the guide post 80, the first spring 89 is fixedly connected between the flat plate 7 and the guide post 80, the upper side of the flat plate 7 is rotationally connected with the supporting wheel 891, the arc-shaped grooves 892 are arranged on the upper side wall of the mounting cavity 72 at intervals, the supporting wheel 891 is arranged corresponding to the arc-shaped grooves 892, the outlet end of the mounting cavity 72 is fixedly connected with the rubber plate 9, and a certain sealing effect is achieved on the outlet end of the mounting cavity 72.
According to the invention, when the supporting wheel 891 of the last flat plate 7 meets the arc-shaped groove 892 in the process that the flat plate 7 extends out of the mounting cavity 72, the first spring 89 pushes all the flat plates 7 upwards, so that the flat plate 7 is stirred and extruded up and down in the advancing process, and a cavity with the width larger than that of the flat plate 7 is formed in the mud cake, so that water injection is facilitated, disintegration of the mud cake is accelerated, and the disintegrated mud cake is convenient to discharge after being dispersed.
The invention also discloses a mud cake stripping method for shield construction, which is used for stripping mud cakes gathered by the tunnel shield cutterhead.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a shield constructs construction mud cake and strips system, includes mounting bracket (1), mounting bracket (1) fixed connection arc guide rail (11), arc guide rail (11) sliding connection slide (2), slide (2) fixed connection backup pad (3), backup pad (3) fixed connection hydraulic cylinder (4), the flexible end fixed connection clearance cover (5) of hydraulic cylinder (4), clearance cover (5) upside fixed connection injection pipe (51), clearance cover (5) bottom sets up the blowdown hole, its characterized in that: the cleaning cover (5) is rotationally connected with the poking rod (6), the poking rod (6) is provided with a first torsion spring with a rotating shaft of the cleaning cover (5), the cleaning cover (5) is fixedly connected with a pressurizing pump, an interlayer (61) is arranged in the poking rod (6), jet holes (62) are uniformly formed in the outer wall of the poking rod (6), the jet holes (62) are communicated with the interlayer (61), and the pressurizing pump is communicated with the interlayer (61) of the poking rod (6) through a hose;
One end of the toggle rod (6) extending out of the cleaning cover (5) is also provided with an extendable arc plate;
The sliding seat (2) is fixedly connected with the driving motor (21), a main shaft of the driving motor (21) is fixedly connected with the driving gear (22), the arc-shaped guide rail (11) is fixedly connected with the arc-shaped toothed plate (23), and the driving gear (22) is meshed with the arc-shaped toothed plate (23);
the arc-shaped plate comprises a plurality of flat plates (7) which are sequentially hinged, a second torsion spring is arranged in the hinge shaft (71), a mounting cavity (72) is arranged in the toggle rod (6), a telescopic piece is arranged in the mounting cavity (72), and the telescopic piece is used for pushing out the arc-shaped plate from the mounting cavity (72);
the telescopic piece comprises a first toothed plate (81) and a second toothed plate (82), the installation cavity (72) is rotationally connected with a linkage gear (83), the first toothed plate (81) and the second toothed plate (82) are meshed with two sides of the linkage gear (83), the first toothed plate (81) and the second toothed plate (82) are oppositely and slidably connected in the installation cavity (72), the first toothed plate (81) is connected with one of the flat plates (7), a boss (84) is arranged in the middle of the second toothed plate (82), a supporting spring (85) is fixedly connected between the boss (84) and the inner wall of the installation cavity (72), one end of the second toothed plate (82) extends out of a toggle rod (6) and is rotationally connected with a roller (86), a stop block (87) is fixedly connected with the inner wall of the cleaning cover (5), and one side of the stop block (87) is provided with an inclined arc groove (88).
2. The shield construction mud cake stripping system according to claim 1, wherein: semi-cylindrical protrusions (73) are arranged on two sides of the flat plate (7).
3. The shield construction mud cake stripping system according to claim 1, wherein: the height of installation cavity (72) is greater than dull and stereotyped (7) thickness, first pinion rack (81) one end fixed connection guide post (80), one of them dull and stereotyped (7) sliding connection is on guide post (80), fixed connection first spring (89) between dull and stereotyped (7) and guide post (80), dull and stereotyped (7) upside rotates connection supporting wheel (891), the last lateral wall interval of installation cavity (72) sets up arc recess (892), supporting wheel (891) corresponds arc recess (892) setting.
4. A shield construction mudcake stripping system as recited in claim 3, wherein: the outlet end of the installation cavity (72) is fixedly connected with a rubber plate (9).
5. The shield construction mud cake stripping system according to claim 4, wherein: one end of the poking rod (6) is provided with an arc-shaped surface (611), and the front end of the flat plate (7) is provided with an inclined surface (711).
6. A shield construction mud cake stripping method is characterized in that: a mud cake stripping system as set forth in any one of claims 1-5 for stripping mud cakes gathered on a tunnel shield cutterhead.
CN202410179925.0A 2024-02-18 2024-02-18 Shield construction mud cake stripping system and method thereof Active CN117718271B (en)

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Application Number Priority Date Filing Date Title
CN202410179925.0A CN117718271B (en) 2024-02-18 2024-02-18 Shield construction mud cake stripping system and method thereof

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Application Number Priority Date Filing Date Title
CN202410179925.0A CN117718271B (en) 2024-02-18 2024-02-18 Shield construction mud cake stripping system and method thereof

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CN117718271A CN117718271A (en) 2024-03-19
CN117718271B true CN117718271B (en) 2024-04-26

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6383296B1 (en) * 1999-11-22 2002-05-07 Harris & Bruno Machine Co. Chambered doctor blade with automatic cleanup and ink replacement
JP2002138787A (en) * 2000-11-02 2002-05-17 Kajima Corp Underground-joining shield machine
JP2006150291A (en) * 2004-11-30 2006-06-15 Nomura Micro Sci Co Ltd Washing apparatus
CN109057812A (en) * 2018-10-25 2018-12-21 重庆大学 A kind of anti-mud cake flushing system of shield machine
CN109113754A (en) * 2018-10-15 2019-01-01 中国铁建重工集团有限公司 A kind of slurry balance shield machine and its anti-mud lining device of cutterhead
CN111632921A (en) * 2020-04-21 2020-09-08 水利部新疆维吾尔自治区水利水电勘测设计研究院 Earth pressure balance shield constructs quick-witted mud cake cleaning device with sealed gate
CN111828028A (en) * 2020-06-28 2020-10-27 盾构及掘进技术国家重点实验室 Shield tunneling machine cutter head with mud cake detection and removal device and using method
KR102230365B1 (en) * 2020-09-15 2021-03-22 (주)자연과환경 Soil cleaning system with cleaning the transfer pipes by high-pressure water
KR102415773B1 (en) * 2021-08-20 2022-07-01 주식회사 케이에스이앤지 Air purifier for tunnels and underground roadways
CN115415221A (en) * 2022-08-30 2022-12-02 中国建筑一局(集团)有限公司 Cutter head cleaning device and using method thereof
CN220461485U (en) * 2023-07-17 2024-02-09 广西桂能电力有限责任公司 Gate cleaning device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6383296B1 (en) * 1999-11-22 2002-05-07 Harris & Bruno Machine Co. Chambered doctor blade with automatic cleanup and ink replacement
JP2002138787A (en) * 2000-11-02 2002-05-17 Kajima Corp Underground-joining shield machine
JP2006150291A (en) * 2004-11-30 2006-06-15 Nomura Micro Sci Co Ltd Washing apparatus
CN109113754A (en) * 2018-10-15 2019-01-01 中国铁建重工集团有限公司 A kind of slurry balance shield machine and its anti-mud lining device of cutterhead
CN109057812A (en) * 2018-10-25 2018-12-21 重庆大学 A kind of anti-mud cake flushing system of shield machine
CN111632921A (en) * 2020-04-21 2020-09-08 水利部新疆维吾尔自治区水利水电勘测设计研究院 Earth pressure balance shield constructs quick-witted mud cake cleaning device with sealed gate
CN111828028A (en) * 2020-06-28 2020-10-27 盾构及掘进技术国家重点实验室 Shield tunneling machine cutter head with mud cake detection and removal device and using method
KR102230365B1 (en) * 2020-09-15 2021-03-22 (주)자연과환경 Soil cleaning system with cleaning the transfer pipes by high-pressure water
KR102415773B1 (en) * 2021-08-20 2022-07-01 주식회사 케이에스이앤지 Air purifier for tunnels and underground roadways
CN115415221A (en) * 2022-08-30 2022-12-02 中国建筑一局(集团)有限公司 Cutter head cleaning device and using method thereof
CN220461485U (en) * 2023-07-17 2024-02-09 广西桂能电力有限责任公司 Gate cleaning device

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