CN201424940Y - Mud cake prevention device for slurry shield machine - Google Patents

Mud cake prevention device for slurry shield machine Download PDF

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Publication number
CN201424940Y
CN201424940Y CN2009200579150U CN200920057915U CN201424940Y CN 201424940 Y CN201424940 Y CN 201424940Y CN 2009200579150 U CN2009200579150 U CN 2009200579150U CN 200920057915 U CN200920057915 U CN 200920057915U CN 201424940 Y CN201424940 Y CN 201424940Y
Authority
CN
China
Prior art keywords
pipe
cavity
rotary
shield machine
mud cake
Prior art date
Application number
CN2009200579150U
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Chinese (zh)
Inventor
龙国强
王小军
王永贵
Original Assignee
广东华隧建设股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东华隧建设股份有限公司 filed Critical 广东华隧建设股份有限公司
Priority to CN2009200579150U priority Critical patent/CN201424940Y/en
Application granted granted Critical
Publication of CN201424940Y publication Critical patent/CN201424940Y/en

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Abstract

The utility model discloses a mud cake prevention device for a slurry shield machine, which comprises a hollow rotary pipe and a baffle arranged in the rotary pipe, the inner cavity of the rotary pipeis divided into a front cavity and a rear cavity by the baffle, the rear end of the rotary pipe extends to the front end of the cylinder body of a fixed support base, an annular seal is arranged between the rotary pipe and the fixed support base, a water pipe is arranged in the rear cavity of the rotary tube, one end of the water pipe penetrates through the baffle to be communicated with the front cavity, the other end of the water pipe extends to the fixed support base to be connected with a cutter plate water injection pipe through a rotary joint, and a slurry pipe communicated with the rear cavity of the rotary pipe is arranged on the rotary pipe. High pressure tap water enters the front cavity of the rotary pipe through the water injection pipe, the rotary joint and the water pipe, and flows to the central opening, the slurry pumped by the circulation pump directly enters the rear cavity and reaches both sides of the center of the cutter plate through the slurry pipe so that a mudcake is prevented from forming on the cutter plate surface of the shield machine and the unformed mud cake is washed out in time.

Description

A kind of slurry shield machine is prevented the mud cake device

Technical field

The utility model relates to a kind of device that prevents on the slurry shield machine that the cutterhead mud cake from forming that is applied in, and it also can wash away unfashioned mud cake.

Background technology

Shield machine is in the tunneling process of clay stratum, the cohesive soil of excavation surface is subjected to rolling of cutterhead, be easy to from the cutterhead center to the mud cake that progressively formation is adhered on cutterhead face and native storehouse inwall all around, thereby cause the stock-removing efficiency of cutterhead to reduce, prolong the driving time, increase the moment of torsion of cutterhead and the thrust of shield structure, also increased the failure-frequency of equipment.Multistage water pump pressurization tap water is adopted on existing slurry-water balance type shield machine top, send into cutterhead by centre of gyration pipeline then, injecting water under high pressure tool setting card between the cutterhead opening is lubricated, reduce the frictional force of cutterhead, utilize injection hydraulic pressure to shoot down a small amount of clay that cutterhead face plate center opening part adheres to simultaneously in the face of the front soil body.But in the construction of reality, the aperture of cutterhead water injection hole is less, very easily in tunneling process, stopped up by the stone in the soil body, thus the forfeiture effect.In addition, the water yield of cutterhead water filling is less, and lubrication and percussion are limited, in the rock stratum that viscosity is very strong continuously, often can't effectively stop the formation of mud cake, causes very big difficulty to shield-tunneling construction.

The utility model content

In order to solve the above problems, the purpose of this utility model provides a kind of mud cake formation device on the cutter head of shield machine that prevents, this apparatus structure is simple, reliable and stable, can form mud cake on the effectively preventing cutterhead, and can remove still unfashioned mud cake.

The technical scheme that the invention for solving the technical problem adopted is:

A kind of slurry shield machine is prevented the mud cake device, the swivelling pipe that comprises hollow, be provided with dividing plate in the described swivelling pipe, described dividing plate is divided into ante-chamber and back cavity with the swivelling pipe inner chamber, the fixed bearing barrel front end is stretched in described swivelling pipe rear end, be provided with ring packing between described swivelling pipe and the fixed bearing, be provided with water pipe in the back cavity of described swivelling pipe, described water pipe one end passes dividing plate and is communicated with ante-chamber, the other end extend in the fixed bearing and links to each other with the cutterhead water injection pipe by swivel coupling, and described swivelling pipe is provided with the mud tube that communicates with its back cavity.

As improvement of the technical scheme, described fixed bearing rear end is connected to ball valve.

As further improvement in the technical proposal, described fixed bearing is provided with the oil circuit of supplying with ring packing lubricating grease.

As further improvement in the technical proposal, described swivelling pipe front end is provided with the flange of the cutterhead of plugging into, and is provided with delivery port in the middle of the described flange.

As further improvement in the technical proposal, described mud tube is the Y type.

The beneficial effects of the utility model are: the high pressure tap water enters the swivelling pipe ante-chamber by water injection pipe and swivel coupling and water pipe, arrives central opening again, and the mud that circulation pump is sent into directly enters back cavity, arrives both sides, cutterhead center by mud tube again.Should not only can play the effect that prevents that mud cake from producing by anti-mud cake device, can inject simultaneously the circulating mud of big flow in the cutterhead center, directly wash away cutterhead, wash out still inchoate mud cake, circular flow in increasing, in time the clay that cuts is taken away, stoped the mutual bonding and the grinding of mass of soil, thereby be difficult for mud lining.Can also increase cutting soil body stream plasticity, improve the conveying capacity of shield machine spoil disposal, effectively prevent the formation of cutter head of shield machine face mud cake.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model fixed bearing structural representation;

To be that this usefulness is novel install and use state diagram to Fig. 3.

The specific embodiment

Referring to figs. 1 to Fig. 3, a kind of slurry shield machine is prevented the mud cake device, the swivelling pipe 1 that comprises hollow, be provided with dividing plate 11 in the described swivelling pipe 1, described dividing plate 11 is divided into ante-chamber 12 and back cavity 13 with swivelling pipe 1 inner chamber, fixed bearing 2 barrel front end are stretched in described swivelling pipe 1 rear end, be provided with ring packing 3 between described swivelling pipe 1 and the fixed bearing 2, be provided with water pipe 14 in the back cavity 13 of described swivelling pipe 1, described water pipe 14 1 ends pass dividing plate 11 and are communicated with ante-chamber 12, the other end extend in the fixed bearing 2 and links to each other with cutterhead water injection pipe 5 by swivel coupling 4, described swivelling pipe 1 is provided with the mud tube 15 that communicates with its back cavity 13,16, device described in the utility model is installed on the installing plate 8 of shield body 7 by fixed bearing 2, the front end of swivelling pipe 1 is fixedly mounted on the cutterhead 9, the high pressure tap water enters swivelling pipe ante-chamber 12 by water injection pipe and swivel coupling and water pipe, arrive central opening again, the mud that circulation pump is sent into directly enters back cavity 13, again by mud tube 15,16 arrive both sides, cutterhead center, effectively prevent the formation of mud cake, and in time wash away still unfashioned mud cake.

Described fixed bearing 2 rear ends are connected to ball valve 6, and it can conveniently be used for controlling closing and opening of circulating mud, inject both sides, cutterhead center through mud tube, thereby directly wash away cutterhead, and obtain suitable mud flow rate by the rotating speed of regulating pump; When time spent not for a long time, can close ball valve, prevent dregs backflow blocking pipeline.

Described fixed bearing 2 is provided with the oil circuit 21 of supplying with ring packing 3 lubricating grease, can periodically infeed lubricating grease in seal groove, makes this device in use safe and reliable.

As optimal way, described swivelling pipe 1 front end is provided with the flange 17 of the cutterhead of plugging into, and is provided with delivery port 18 in the middle of the described flange 17, by flange 17, this device can conveniently be installed on the cutterhead 9, and the delivery port 18 at center is directly to be injected into water the center of cutterhead 9.

As optimal way, described mud tube 15,16 is the Y type, certainly, a plurality of mud tubes can be set as required carry out work.

The utility model is created and is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with essentially identical means, all should belong to protection domain of the present utility model.

Claims (5)

1, a kind of slurry shield machine is prevented the mud cake device, it is characterized in that: the swivelling pipe (1) that comprises hollow, be provided with dividing plate (11) in the described swivelling pipe (1), described dividing plate (11) is divided into ante-chamber (12) and back cavity (13) with swivelling pipe (1) inner chamber, fixed bearing (2) barrel front end is stretched in described swivelling pipe (1) rear end, be provided with ring packing (3) between described swivelling pipe (1) and the fixed bearing (2), be provided with water pipe (14) in the back cavity (13) of described swivelling pipe (1), described water pipe (14) passes dividing plate (11) and is communicated with ante-chamber (12), the other end extend in the fixed bearing (2) and links to each other with cutterhead water injection pipe (5) by swivel coupling (4), described swivelling pipe (1) is provided with the mud tube (15,16) that communicates with its back cavity (13).
2, the anti-mud cake device of slurry shield machine according to claim 1, it is characterized in that: described fixed bearing (2) rear end is connected to ball valve (6).
3, the anti-mud cake device of slurry shield machine according to claim 1 and 2, it is characterized in that: described fixed bearing (2) is provided with the oil circuit (21) of supplying with ring packing (3) lubricating grease.
4, the anti-mud cake device of slurry shield machine according to claim 1, it is characterized in that: described swivelling pipe (1) front end is provided with the flange (17) of the cutterhead of plugging into, and is provided with delivery port (18) in the middle of the described flange (17).
5, the anti-mud cake device of slurry shield machine according to claim 1, it is characterized in that: described mud tube (15,16) is the Y type.
CN2009200579150U 2009-06-05 2009-06-05 Mud cake prevention device for slurry shield machine CN201424940Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200579150U CN201424940Y (en) 2009-06-05 2009-06-05 Mud cake prevention device for slurry shield machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200579150U CN201424940Y (en) 2009-06-05 2009-06-05 Mud cake prevention device for slurry shield machine

Publications (1)

Publication Number Publication Date
CN201424940Y true CN201424940Y (en) 2010-03-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200579150U CN201424940Y (en) 2009-06-05 2009-06-05 Mud cake prevention device for slurry shield machine

Country Status (1)

Country Link
CN (1) CN201424940Y (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101845954A (en) * 2010-04-06 2010-09-29 上海盾构设计试验研究中心有限公司 Self-carrying barrier-breaking and foundation-reinforcing device of shield machine
CN102071942A (en) * 2010-12-02 2011-05-25 沈阳重型机械集团有限责任公司 Processing method for protecting excavation place of shield machine from mudlining
CN102392652A (en) * 2011-07-26 2012-03-28 广东水电二局股份有限公司 Method for removing mud cake in soil bin or muddy water chamber of shield machine and shield machine
CN102434170A (en) * 2010-09-29 2012-05-02 上海尤加工程机械科技有限公司 Air bag piston stretching device of pipe connecting device for slurry shield
CN103362515A (en) * 2013-07-26 2013-10-23 中铁隧道装备制造有限公司 High-pressure water washing system for soil chamber of shield tunneling machine
CN103821527A (en) * 2014-03-12 2014-05-28 上海市机械施工集团有限公司 Covering earth prevention system of rectangular shield tunneling machine and control method of covering earth prevention system
CN103934898A (en) * 2013-12-13 2014-07-23 中铁十四局集团有限公司 Preparing process of self-made mud of clay stratum through slurry shield
CN104533439A (en) * 2014-12-29 2015-04-22 上海市基础工程集团有限公司 Mud cake clustering prevention system of shield machine for construction in clay soil
CN107143343A (en) * 2017-06-30 2017-09-08 上海隧道工程有限公司 A kind of shield cutter panel flushing system
CN109630143A (en) * 2018-12-04 2019-04-16 中铁隧道集团二处有限公司 The electrical improvement control method of slush pump and booster pump in a kind of slurry shield machine
WO2020042057A1 (en) * 2018-08-25 2020-03-05 许慧 Tunneling boring machine preventing mud cakes from forming at excavation part

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101845954A (en) * 2010-04-06 2010-09-29 上海盾构设计试验研究中心有限公司 Self-carrying barrier-breaking and foundation-reinforcing device of shield machine
CN101845954B (en) * 2010-04-06 2012-08-22 上海盾构设计试验研究中心有限公司 Self-carrying barrier-breaking and foundation-reinforcing device of shield machine
CN102434170A (en) * 2010-09-29 2012-05-02 上海尤加工程机械科技有限公司 Air bag piston stretching device of pipe connecting device for slurry shield
CN102071942A (en) * 2010-12-02 2011-05-25 沈阳重型机械集团有限责任公司 Processing method for protecting excavation place of shield machine from mudlining
CN102071942B (en) * 2010-12-02 2012-09-05 沈阳重型机械集团有限责任公司 Processing method for protecting excavation place of shield machine from mud lining
CN102392652B (en) * 2011-07-26 2013-08-14 广东水电二局股份有限公司 Method for removing mud cake in soil bin or muddy water chamber of shield machine and shield machine
CN102392652A (en) * 2011-07-26 2012-03-28 广东水电二局股份有限公司 Method for removing mud cake in soil bin or muddy water chamber of shield machine and shield machine
CN103362515B (en) * 2013-07-26 2016-01-13 中铁工程装备集团有限公司 Shield structure soil storehouse water under high pressure flushing system
CN103362515A (en) * 2013-07-26 2013-10-23 中铁隧道装备制造有限公司 High-pressure water washing system for soil chamber of shield tunneling machine
CN103934898B (en) * 2013-12-13 2016-03-02 中铁十四局集团有限公司 Slurry shield clay stratum is from pulping modulation process
CN103934898A (en) * 2013-12-13 2014-07-23 中铁十四局集团有限公司 Preparing process of self-made mud of clay stratum through slurry shield
CN103821527A (en) * 2014-03-12 2014-05-28 上海市机械施工集团有限公司 Covering earth prevention system of rectangular shield tunneling machine and control method of covering earth prevention system
CN103821527B (en) * 2014-03-12 2016-05-04 上海市机械施工集团有限公司 The anti-back of the body soil series system of rectangular shield machine and control method thereof
CN104533439A (en) * 2014-12-29 2015-04-22 上海市基础工程集团有限公司 Mud cake clustering prevention system of shield machine for construction in clay soil
CN107143343A (en) * 2017-06-30 2017-09-08 上海隧道工程有限公司 A kind of shield cutter panel flushing system
CN107143343B (en) * 2017-06-30 2019-03-29 上海隧道工程有限公司 A kind of shield cutter panel flushing system
WO2020042057A1 (en) * 2018-08-25 2020-03-05 许慧 Tunneling boring machine preventing mud cakes from forming at excavation part
CN109630143A (en) * 2018-12-04 2019-04-16 中铁隧道集团二处有限公司 The electrical improvement control method of slush pump and booster pump in a kind of slurry shield machine

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent for invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: LONG GUOQIANG WANG XIAOJUN WANG YONGGUI TO: LONG GUOQIANG WANG XIAOJUN WANG YONGGUI FANG QICHAO ZHAO HUI YI JUE LAI WEIWEN WANG JIAXING LI JIANG FANG JUNSHENG

CB03 Change of inventor or designer information

Inventor after: Long Guoqiang

Inventor after: Fang Junsheng

Inventor after: Wang Xiaojun

Inventor after: Wang Yonggui

Inventor after: Fang Qichao

Inventor after: Zhao Hui

Inventor after: Yi Jue

Inventor after: Lai Weiwen

Inventor after: Wang Jiaxing

Inventor after: Li Jiang

Inventor before: Long Guoqiang

Inventor before: Wang Xiaojun

Inventor before: Wang Yonggui

CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 510220 Guangdong city of Guangzhou province Haizhuqu District Yue Xuan Street No. 81 (G-3) 1501-1512, 1604-1607 room

Patentee after: Guangdong Hua Qiao construction group Limited by Share Ltd

Address before: 510000, building 18, Pacific Insurance Mansion, 559 Tianhe North Road, 1802, Guangdong, Guangzhou

Patentee before: China Tunnel Construction Co., Ltd. Guangdong

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20100317