CN110424974A - For the independent plus-minus pressure device of shield machine center storehouse docking and plus decompression method - Google Patents
For the independent plus-minus pressure device of shield machine center storehouse docking and plus decompression method Download PDFInfo
- Publication number
- CN110424974A CN110424974A CN201910819599.4A CN201910819599A CN110424974A CN 110424974 A CN110424974 A CN 110424974A CN 201910819599 A CN201910819599 A CN 201910819599A CN 110424974 A CN110424974 A CN 110424974A
- Authority
- CN
- China
- Prior art keywords
- plus
- pressure device
- minus
- minus pressure
- storehouse
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- 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
-
- 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
- E21D9/087—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 with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
Abstract
The invention discloses a kind of independent plus-minus pressure device for the docking of shield machine center storehouse and add decompression method, solves the problems, such as that it is inconvenient, ineffective to pass in and out center storehouse by operator in the prior art.The present invention include transition passage and can self-existent plus-minus pressure device, on the centrally disposed storehouse of transition passage, plus-minus pressure device is connected by intercommunicating device with transition passage, in use, the transition passage is connected with center storehouse.The present invention relates to a kind of for center storehouse docks and can realize the device of independent plus-minus pressure, which is able to achieve dock with center storehouse, and independent plus-minus is pressed, convenient for disassembly and assembly, flexibility is higher.In addition, the device can be connect for a long time with center storehouse, can also be attached when needed, solve the problems, such as center storehouse plus-minus pressure low efficiency, improve feed Pan Cang with pressure it is efficient with it is convenient.
Description
Technical field
The present invention relates to shield machine technical fields, particularly relate to a kind of independent plus-minus pressure for the docking of shield machine center storehouse
Device and plus decompression method.
Background technique
Currently, great burying, high hydraulic pressure, the shield tunnel of long range are more and more, while tunnel geology also becomes increasingly complex.
To improve tool changing operational security and tool changing efficiency under high hydraulic pressure environment, more and more shield machines are initially configured normal pressure tool changing knife
Disk.Normal pressure tool changing cutterhead is hollow box body structure, is equipped with center storehouse in cutter head center position, closing center, all kinds of channels, storehouse,
Center storehouse and normal pressure cutterhead can be allowed to form an independent enclosure space.By this form, there is spillage in normal pressure cutterhead and ask
When topic, closing center's storehouse hatch door, avoidable slurries, which leak into inside tunnel, causes construction risk.It is right after closing center's storehouse hatch door
Cutterhead internal pressurization, operator it is with pressure enter cutterhead inside repair processing.But center storehouse is not provided with independence at present
Personnel add and subtract pressure storehouse, this result in cutterhead when something goes wrong warehouse entry overhaul when plus-minus pressure efficiency it is lower.
Summary of the invention
For the deficiency in above-mentioned background technique, the present invention proposes a kind of independent plus-minus for the docking of shield machine center storehouse
Pressure device and add decompression method, solves the problems, such as that it is inconvenient, ineffective to pass in and out center storehouse by operator in the prior art.
The technical scheme of the present invention is realized as follows: a kind of independent plus-minus press fitting for the docking of shield machine center storehouse
Set, including transition passage and can self-existent plus-minus pressure device, on the centrally disposed storehouse of transition passage, plus-minus pressure device passes through
Intercommunicating device is connected with transition passage, and the transition passage is connected with center storehouse.
The plus-minus pressure device is arranged on the assembling machine in TBM, and plus-minus pressure device passes through mobile mechanism and assembling machine phase
Connection.
The plus-minus pressure device includes support frame and people cabin, and people cabin is fixedly installed on the support frame, and the two sides in people cabin are all provided with
There is hatch door, plus-minus is connected on people cabin and is calmed the anger pumping system.
The mobile mechanism includes that the lower part of support frame is arranged in equipped with pulley, and assembling machine is equipped with sliding rail, pulley and cunning
Rail matches, and sliding rail is equipped with mechanical limiting mechanism.
The intercommunicating device is communication passage, in use, the both ends of communication passage by fastener and sealing element respectively with
Transition passage, plus-minus pressure device are connected.
The transition passage is equipped with the hatch door of two-way switch.
A kind of independent plus-minus pressure device for the docking of shield machine center storehouse plus decompression method, steps are as follows:
S1: when center storehouse need to carry out band and be pressed into cabin operation, intercommunicating device is fastenedly connected with transition passage sealing, adds and subtracts pressure device
It is hoisted to designated position, intercommunicating device is fastenedly connected with plus-minus pressure device sealing；
S2: when warehouse entry operation with pressure, center storehouse and cutterhead are forced into require pressure first；Operator enters plus-minus press fitting
It sets, specified pressure is forced into intercommunicating device and plus-minus pressure device；Operator passes through intercommunicating device, transition passage to center storehouse
Carry out Operating Pressure；
S3: after operation, operator is by transition passage, intercommunicating device to adding and subtracting pressure device；Enter to operator and adds
Decompressor, plus-minus pressure device close hatch door, are depressurized in plus-minus pressure device, and plus-minus pressure device is gone out after decompression and is
It can；
S4: keeping cutterhead, center storehouse, intercommunicating device pressure constant, when being again introduced into center storehouse, after plus-minus pressure device pressurization,
Operator is directly entered the operation of center storehouse by intercommunicating device.
S5: after all working, transition passage, decompressor hatch door are closed, removes intercommunicating device.
The present invention relates to a kind of to dock and can realize that the device that independent plus-minus is pressed, the device are able to achieve in for center storehouse
The docking of heart storehouse, independent plus-minus pressure are convenient for disassembly and assembly, flexibility is higher.It, can also be in addition, the device can be connect for a long time with center storehouse
It is attached when needed, solves the problems, such as that pressure storehouse is added and subtracted without independent persons in center storehouse, improve the height of feed Pan Cang with pressure
Effect with it is convenient.Meanwhile as long as the device closes hatch door when personnel pass in and out, without dismounting the component being related to, relatively it is furnished with and shuttles
The device in storehouse has saved the time of dismounting docking facilities, further improves construction efficiency.The present invention independently adds and subtracts laminated structure letter
Single, method is novel, facilitates cutterhead to repair and detect, improves operating safety factor and operating efficiency, has to constructing tunnel and protrude
Contribution.
Detailed description of the invention
In order to illustrate the embodiments of the present invention more clearly, attached drawing needed in describing below to embodiment makees letter
Singly introduce, it should be apparent that, drawings in the following description are only some embodiments of the invention, skill common for this field
For art personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is overall structure of the present invention signal.
Fig. 2 be in Fig. 1 A to schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1, as shown in Figure 1, a kind of independent plus-minus pressure device for the docking of shield machine center storehouse, including transition are logical
Road 4 and can self-existent plus-minus pressure device 1, on the centrally disposed storehouse 3 of transition passage 4, the front end in center storehouse is cutterhead 9, is made
Used time, plus-minus pressure device 1 are connected by intercommunicating device 2 with transition passage 4, and intercommunicating device 2 is also channel, transition passage 4 and
Center storehouse 3 is connected.When pressurization operation, operator enters plus-minus pressure device, then enters through communication apparatus and transition passage
In the storehouse of center, cutterhead is led to the problem of and is handled in time.
Further, as shown in Fig. 2, the plus-minus pressure device 1 is arranged on the assembling machine 7 in TBM, plus-minus pressure device 1 is logical
It crosses mobile mechanism to be connected with assembling machine 7, plus-minus pressure device is hoisted on assembling machine, plus-minus press fitting is carried out by mobile mechanism
The adjustment of seated position, convenient for the connection with intercommunicating device, slipping mechanism or rolling mechanism is can be used in mobile mechanism.The plus-minus pressure
Device 1 includes support frame 101 and people cabin 102, and people cabin 102 is fixed on support frame 101, real by the handling to support frame
The handling in people cabin is now spent, the two sides in people cabin 102 are equipped with hatch door, and one is used for the folding with intercommunicating device channel, and one is used for
Go out cabin into cabin, plus-minus is connected on people cabin 102 and is calmed the anger pumping system, plus-minus calms the anger pumping system for carrying out plus-minus pressure into people cabin.
People cabin uses independent people cabin, and internal configuration is identical as existing people cabin.
Further, the mobile mechanism includes that the lower part of support frame 101 is arranged in equipped with pulley 103, and assembling machine 7 is equipped with
Sliding rail 104, pulley 103 are matched with sliding rail 104, and by pushing support frame, pulley is moved along sliding rail, and the moving cabin of support frame band is moved
Dynamic, sliding rail 104 is equipped with mechanical limiting mechanism 105, and mechanical limiting mechanism is for the fixation to support frame, when people cabin is in suitable
When position, pulley is fixed by mechanical limiting mechanism, prevents support frame in operation process from moving.Mechanical limiting mechanism can
Using bolt locating piece, or use snaps into position block.
Further, the intercommunicating device 2 is communication passage, in use, the both ends of communication passage pass through fastener and close
Sealing is connected with transition passage 4, plus-minus pressure device 1 respectively, guarantees the leakproofness and stationarity in this channel.The transition is logical
Road 4 is equipped with the hatch door of two-way switch, the on-off for transition passage 4.
Embodiment 2, a kind of independent plus-minus pressure device for the docking of shield machine center storehouse plus decompression method, step is such as
Under:
S1: when center storehouse need to carry out band and be pressed into cabin operation, intercommunicating device 2 is fastenedly connected with the sealing of transition passage 4, plus-minus press fitting
It sets 1 and is hoisted to designated position, that is, first pass through loop wheel machine and be hoisted to suitable position, plus-minus pressure device is then adjusted by mobile mechanism,
When in place, plus-minus pressure device is fixed, then intercommunicating device 2 is fastenedly connected with the plus-minus sealing of pressure device 1；
S2: when warehouse entry operation with pressure, center storehouse 3 and cutterhead 9 are forced into and require pressure first；Operator enters plus-minus press fitting
1 is set, specified pressure is forced into intercommunicating device 2 and plus-minus pressure device 1；Operator by intercommunicating device 2, transition passage 4 to
Center storehouse 3 carries out Operating Pressure；
S3: after operation, operator passes through transition passage 4, intercommunicating device 2 to plus-minus pressure device 1；Enter to operator
Pressure device 1 is added and subtracted, plus-minus pressure device 1 closes hatch door, is depressurized in plus-minus pressure device 1, and plus-minus press fitting is gone out after decompression
Set 1；
S4: keeping cutterhead 9, center storehouse 3,2 pressure of intercommunicating device constant, when being again introduced into center storehouse, pressurizes to plus-minus pressure device 1
Afterwards, operator is directly entered 3 operation of center storehouse by intercommunicating device 2.
S5: after all working, transition passage 4,1 hatch door of decompressor are closed, removes intercommunicating device 2.
Other structures are same as Example 1.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of independent plus-minus pressure device for the docking of shield machine center storehouse, it is characterised in that: including transition passage (4) and can
Self-existent plus-minus pressure device (1), on transition passage (4) centrally disposed storehouse (3), plus-minus pressure device (1) passes through connection dress
(2) are set to be connected with transition passage (4).
2. the independent plus-minus pressure device according to claim 1 for the docking of shield machine center storehouse, it is characterised in that: described
Plus-minus pressure device (1) is arranged on the assembling machine in TBM (7), and plus-minus pressure device (1) passes through mobile mechanism and assembling machine (7) phase
Connection.
3. the independent plus-minus pressure device according to claim 2 for the docking of shield machine center storehouse, it is characterised in that: described
Adding and subtracting pressure device (1) includes support frame (101) and people cabin (102), and people cabin (102) are fixed on support frame (101), people cabin
(102) two sides are equipped with hatch door, and plus-minus is connected on people cabin (102) and is calmed the anger pumping system.
4. the independent plus-minus pressure device according to claim 3 for the docking of shield machine center storehouse, it is characterised in that: described
Mobile mechanism includes being arranged to be equipped with pulley (103) in the lower part of support frame (101), and assembling machine (7) is equipped with sliding rail (104), sliding
Wheel (103) is matched with sliding rail (104), and sliding rail (104) is equipped with mechanical limiting mechanism (105).
5. the independent plus-minus pressure device according to claim 1-4 for the docking of shield machine center storehouse, feature
Be: the intercommunicating device (2) is communication passage, in use, the both ends of communication passage by fastener and sealing element respectively with
Transition passage (4), plus-minus pressure device (1) are connected.
6. the independent plus-minus pressure device according to claim 5 for the docking of shield machine center storehouse, it is characterised in that: described
Transition passage (4) is equipped with the hatch door of two-way switch.
7. a kind of plus-minus pressure side of the independent plus-minus pressure device as described in claim 1 or 6 for the docking of shield machine center storehouse
Method, it is characterised in that: steps are as follows:
S1: when center storehouse need to carry out band and be pressed into cabin operation, intercommunicating device (2) is fastenedly connected with transition passage (4) sealing, is added and subtracted
Pressure device (1) is hoisted to designated position, and intercommunicating device (2) is fastenedly connected with plus-minus pressure device (1) sealing；
S2: when warehouse entry operation with pressure, center storehouse (3) and cutterhead (9) are forced into and require pressure first；Operator enters plus-minus
Pressure device (1) is forced into specified pressure to intercommunicating device (2) and plus-minus pressure device (1)；Operator by intercommunicating device (2),
Transition passage (4) to center storehouse (3) carry out Operating Pressure；
S3: after operation, operator passes through transition passage (4), intercommunicating device (2) to plus-minus pressure device (1)；To operator
Member enters plus-minus pressure device (1), and plus-minus pressure device (1) closes hatch door, is depressurized in plus-minus pressure device (1), decompression terminates
Go out plus-minus pressure device (1) afterwards；
S4: keeping cutterhead (9), center storehouse (3), intercommunicating device (2) pressure constant, when being again introduced into center storehouse, is pressed to plus-minus
After setting (1) pressurization, operator is directly entered center storehouse (3) operation by intercommunicating device (2);
S5: after all working, transition passage (4), decompressor (1) hatch door are closed, are removed intercommunicating device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910819599.4A CN110424974A (en) | 2019-08-31 | 2019-08-31 | For the independent plus-minus pressure device of shield machine center storehouse docking and plus decompression method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910819599.4A CN110424974A (en) | 2019-08-31 | 2019-08-31 | For the independent plus-minus pressure device of shield machine center storehouse docking and plus decompression method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110424974A true CN110424974A (en) | 2019-11-08 |
Family
ID=68418379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910819599.4A Pending CN110424974A (en) | 2019-08-31 | 2019-08-31 | For the independent plus-minus pressure device of shield machine center storehouse docking and plus decompression method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110424974A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201334909Y (en) * | 2008-12-18 | 2009-10-28 | 中铁隧道集团隧道设备制造有限公司 | Airlock of shield machine |
| JP2010126903A (en) * | 2008-11-25 | 2010-06-10 | Ihi Corp | Man lock |
| CN201851128U (en) * | 2010-11-19 | 2011-06-01 | 南车资阳机车有限公司 | Pressurizer for maintenance and tool change under pressure in construction of shield machine |
| CN202194666U (en) * | 2011-08-30 | 2012-04-18 | 中国铁建重工集团有限公司 | Split communicated type airlock for shield machine |
| CN202194665U (en) * | 2011-08-30 | 2012-04-18 | 中国铁建重工集团有限公司 | Axially-distributed airlock for shield machine |
| CN202810861U (en) * | 2012-09-26 | 2013-03-20 | 烟台宏远氧业有限公司 | Shield type heading machine transfer cabin |
| CN103790593A (en) * | 2014-02-27 | 2014-05-14 | 中交隧道工程局有限公司 | Shuttle cabin lifting device used on saturated condition with pressure |
| CN103821526A (en) * | 2014-01-28 | 2014-05-28 | 中交隧道工程局有限公司 | Saturation open cabin operation method and saturation open cabin operation equipment under shielding pneumatic conditions |
| CN204941553U (en) * | 2015-09-30 | 2016-01-06 | 中交天和机械设备制造有限公司 | Under condition of calming the anger, shield structure saturation opens the cabin operation saturation chamber |
| CN205100985U (en) * | 2015-09-30 | 2016-03-23 | 中交天和机械设备制造有限公司 | Shield constructs saturation operation cabin of shuttling back and forth of opening cabin under condition of calming anger |
| CN105619049A (en) * | 2016-04-08 | 2016-06-01 | 哈尔滨工业大学 | Air-floating type flexible assembly butt-joint system |
| CN107130971A (en) * | 2017-06-15 | 2017-09-05 | 中铁工程装备集团有限公司 | Shield machine normal pressure cutter head center chamber structure |
| CN206917658U (en) * | 2017-06-09 | 2018-01-23 | 中船重型装备有限公司 | A kind of shield machine material cabin with pressure |
| CN109356595A (en) * | 2018-10-18 | 2019-02-19 | 上海隧道工程有限公司 | Shield band is pressed into the more people's lock Integrated Operational Systems in cabin and operational method |
| CN109367825A (en) * | 2018-11-07 | 2019-02-22 | 北京特种机械研究所 | A kind of bay section automatic butt method |
| CN208950588U (en) * | 2018-10-29 | 2019-06-07 | 中铁工程装备集团有限公司 | One kind being suitable for slurry balance shield machine saturated zone and is pressed into cabin intercommunicating device |
-
2019
- 2019-08-31 CN CN201910819599.4A patent/CN110424974A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010126903A (en) * | 2008-11-25 | 2010-06-10 | Ihi Corp | Man lock |
| CN201334909Y (en) * | 2008-12-18 | 2009-10-28 | 中铁隧道集团隧道设备制造有限公司 | Airlock of shield machine |
| CN201851128U (en) * | 2010-11-19 | 2011-06-01 | 南车资阳机车有限公司 | Pressurizer for maintenance and tool change under pressure in construction of shield machine |
| CN202194666U (en) * | 2011-08-30 | 2012-04-18 | 中国铁建重工集团有限公司 | Split communicated type airlock for shield machine |
| CN202194665U (en) * | 2011-08-30 | 2012-04-18 | 中国铁建重工集团有限公司 | Axially-distributed airlock for shield machine |
| CN202810861U (en) * | 2012-09-26 | 2013-03-20 | 烟台宏远氧业有限公司 | Shield type heading machine transfer cabin |
| CN103821526A (en) * | 2014-01-28 | 2014-05-28 | 中交隧道工程局有限公司 | Saturation open cabin operation method and saturation open cabin operation equipment under shielding pneumatic conditions |
| CN103790593A (en) * | 2014-02-27 | 2014-05-14 | 中交隧道工程局有限公司 | Shuttle cabin lifting device used on saturated condition with pressure |
| CN204941553U (en) * | 2015-09-30 | 2016-01-06 | 中交天和机械设备制造有限公司 | Under condition of calming the anger, shield structure saturation opens the cabin operation saturation chamber |
| CN205100985U (en) * | 2015-09-30 | 2016-03-23 | 中交天和机械设备制造有限公司 | Shield constructs saturation operation cabin of shuttling back and forth of opening cabin under condition of calming anger |
| CN105619049A (en) * | 2016-04-08 | 2016-06-01 | 哈尔滨工业大学 | Air-floating type flexible assembly butt-joint system |
| CN206917658U (en) * | 2017-06-09 | 2018-01-23 | 中船重型装备有限公司 | A kind of shield machine material cabin with pressure |
| CN107130971A (en) * | 2017-06-15 | 2017-09-05 | 中铁工程装备集团有限公司 | Shield machine normal pressure cutter head center chamber structure |
| CN109356595A (en) * | 2018-10-18 | 2019-02-19 | 上海隧道工程有限公司 | Shield band is pressed into the more people's lock Integrated Operational Systems in cabin and operational method |
| CN208950588U (en) * | 2018-10-29 | 2019-06-07 | 中铁工程装备集团有限公司 | One kind being suitable for slurry balance shield machine saturated zone and is pressed into cabin intercommunicating device |
| CN109367825A (en) * | 2018-11-07 | 2019-02-22 | 北京特种机械研究所 | A kind of bay section automatic butt method |
Non-Patent Citations (2)
| Title |
|---|
| 张英明等: "饱和带压开舱技术相关设备及操作研究", 《现代隧道技术》 * |
| 陈建等: "《盾构隧道刀具更换技术》", 31 January 2019, 上海科学技术出版社 * |
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Application publication date: 20191108 |
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