CN202500574U - Cutter expansion device for shield - Google Patents
Cutter expansion device for shield Download PDFInfo
- Publication number
- CN202500574U CN202500574U CN2012200972620U CN201220097262U CN202500574U CN 202500574 U CN202500574 U CN 202500574U CN 2012200972620 U CN2012200972620 U CN 2012200972620U CN 201220097262 U CN201220097262 U CN 201220097262U CN 202500574 U CN202500574 U CN 202500574U
- Authority
- CN
- China
- Prior art keywords
- cutter
- cutterhead
- shield machine
- shield
- oil cylinder
- 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.)
- Expired - Fee Related
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a cutter expansion device for a shield. The cutter expansion device for the shield comprises a cutter mounted in the front of a shield body, a cutter driver mounted on the body and driving the cutter to rotate, and an elastic driving device mounted on the body and moving along the rotary shaft. By adopting the technical scheme, the elastic driving device drives the cutter to stretch after advancing during exchanging the shield, thereby effectively preventing the cutter from being locked on the wall of a tunnel.
Description
Technical field
the utility model relates to a kind of cutter head of shield machine stretching device.
Background technology
shield tunnel development machine; Be called for short shield machine; Be a kind of special engineering machinery of tunnel piercing; Carry out that tunnel construction has the automaticity height, saves manpower, speed of application is fast, face sedimentation controllably when cavitation, weatherproof, excavation, reduce the influence of above ground structure and do not influence characteristics such as water surface traffic when excavating under water, under the situation long at tunnel hole line, that buried depth is bigger, with shield machine with more economical rationality of shield machine construction.
When the shield driving state, the changeable type bite is to be inserted in rock stratum or the earth
, for making things convenient for tool changing, need from rock stratum or earth, extract cutter, depends merely on manpower and is difficult to reach.
The utility model content
in order to address the above problem, the purpose of the utility model is to provide a kind of cutter head of shield machine stretching device.
are in order to reach above purpose; The technical scheme that the utility model adopts is: the cutter head of shield machine stretching device, it comprises the cutterhead that is installed on shield machine body front end, be installed on the body and drive cutter plate driver portion that cutterhead rotates, be installed on the body and drive the retractable driving device that cutterhead moves along self rotor shaft direction.
further, retractable driving device comprises the brake cylinder of sliding oil cylinder that several are evenly distributed along the cutterhead circumference and the limit slippage oil cylinder stroke that is connected with sliding oil cylinder.
further, retractable driving device is connected with cutter plate driver portion.
are owing to adopted technique scheme; The utility model cutter head of shield machine stretching device; When being the shield machine tool changing, retractable driving device is advanced the cutter plate driver cutterhead earlier and is shunk, has effectively prevented the stuck inconvenience that in the tunnel crag, brings for tool changing of cutter.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model cutter head of shield machine stretching device when cutterhead is positioned at the reference position;
Accompanying drawing 2 is the structural representation of the utility model cutter head of shield machine stretching device when cutterhead is positioned at tool change position;
Accompanying drawing 3 is a cutter plate driver portion rear view in the utility model cutter head of shield machine stretching device;
accompanying drawing 4 is the utility model job step sketch map.
Label is among the figure:
1, body; 2, cutterhead; 3, cutter plate driver portion; 4, sliding oil cylinder; 5, brake cylinder.
The specific embodiment
Set forth the preferred embodiment of the utility model below in conjunction with accompanying drawing in detail
; Thereby the protection domain of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
can be found out from the structural representation of accompanying drawing 1 to accompanying drawing 3; The utility model provides the cutter head of shield machine stretching device, and it comprises the cutterhead 2 that is installed on shield machine body 1 front end, be installed on the body 1 and drive cutter plate driver portion 3 that cutterhead 2 rotates, be installed on the body 1 and drive the retractable driving device that cutterhead 2 moves along self rotor shaft direction.
retractable driving device is connected with cutter plate driver portion 3.Retractable driving device comprises sliding oil cylinder 4 and the some brake cylinders 5 that is connected with sliding oil cylinder 4 that several are evenly distributed along cutterhead 2 circumference.In the present embodiment, each sliding oil cylinder 4 is connected with a brake cylinder 5.Shown in accompanying drawing 4, brake cylinder 5 is when braking, and its piston rod stretches out between the piston rod of the bottom of sliding oil cylinder 4 and sliding oil cylinder 4, and this moment, the piston rod of sliding oil cylinder 4 can not shrink again, controlled the stroke of sliding oil cylinder 4 thus.
In
accompanying drawing 1, when cutterhead 2 was positioned at the reference position, distance was L between cutterhead 2 outer rim rear ends and shield machine body 1 front end; L=150mm is in the accompanying drawing 2, when cutterhead 2 is positioned at tool change position; Distance L-s between cutterhead 2 outer rim rear ends and shield machine body 1 front end; L-s=50mm, s are the displacement of sliding oil cylinder 4, s=100mm.
Can find out the job step when tool changing of the cutter head of shield machine stretching device in the present embodiment from the step sketch map of accompanying drawing 4:
1, after cutterhead 2 stopped operating, cutterhead 2 was positioned at the reference position, and brake cylinder 5 is in on-position;
2, sliding oil cylinder 4 promotion cutterheads 2 advance 20mm to crossover position from the reference position along cutterhead 2 rotor shaft direction;
3, brake cylinder 5 cancellation brakings;
4, sliding oil cylinder 4 drives cutterhead 2 again along cutterhead 2 rotor shaft direction contraction 120mm, and cutterhead 2 is contracted to the reference position continued and is contracted to tool change position; Operating personnel carry out tool changing;
5, after tool changing finished, sliding oil cylinder 4 promoted cutterhead 2 and advances 120mm to crossover position from tool change position;
6, brake cylinder 5 brakings;
7, sliding oil cylinder 4 drive cutterhead 2 and shrink 20mm to the reference position, and this moment, sliding oil cylinder 4 can not shrink again under the effect of brake cylinder 5.
the foregoing description is only for explaining the technical conceive and the characteristics of the utility model; Its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection domain of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the utility model.
Claims (3)
1. cutter head of shield machine stretching device is characterized in that: it comprises the cutterhead (2) that is installed on shield machine body (1) front end, be installed on said body (1) goes up and drives cutter plate driver portion (3) that said cutterhead (2) rotates, is installed on said body (1) and goes up and drive the retractable driving device that said cutterhead (2) moves along self rotor shaft direction.
2. cutter head of shield machine stretching device according to claim 1 is characterized in that: described retractable driving device comprises the brake cylinder (5) of limit slippage oil cylinder (4) stroke that sliding oil cylinder (4) that several are evenly distributed along said cutterhead (2) circumference and some and said sliding oil cylinder (4) are connected.
3. cutter head of shield machine stretching device according to claim 1 is characterized in that: described retractable driving device is connected with cutter plate driver portion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200972620U CN202500574U (en) | 2012-03-15 | 2012-03-15 | Cutter expansion device for shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200972620U CN202500574U (en) | 2012-03-15 | 2012-03-15 | Cutter expansion device for shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500574U true CN202500574U (en) | 2012-10-24 |
Family
ID=47037189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200972620U Expired - Fee Related CN202500574U (en) | 2012-03-15 | 2012-03-15 | Cutter expansion device for shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202500574U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562084A (en) * | 2012-03-15 | 2012-07-11 | 中交天和机械设备制造有限公司 | TBM (tunnel boring machine) cutter expansion and contraction device |
| CN103726856A (en) * | 2013-12-30 | 2014-04-16 | 上海市机械施工集团有限公司 | Axial telescopic cutter disc system |
| CN107339112A (en) * | 2017-07-13 | 2017-11-10 | 北方重工集团有限公司 | A kind of full section face development machine cutter head of variable cutting diameter |
| CN111764913A (en) * | 2020-07-03 | 2020-10-13 | 北京市政建设集团有限责任公司 | Shield constructs machine knife dish telescopic machanism |
-
2012
- 2012-03-15 CN CN2012200972620U patent/CN202500574U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562084A (en) * | 2012-03-15 | 2012-07-11 | 中交天和机械设备制造有限公司 | TBM (tunnel boring machine) cutter expansion and contraction device |
| CN103726856A (en) * | 2013-12-30 | 2014-04-16 | 上海市机械施工集团有限公司 | Axial telescopic cutter disc system |
| CN103726856B (en) * | 2013-12-30 | 2016-06-08 | 上海市机械施工集团有限公司 | Axial telescopic cutter disc system |
| CN107339112A (en) * | 2017-07-13 | 2017-11-10 | 北方重工集团有限公司 | A kind of full section face development machine cutter head of variable cutting diameter |
| CN111764913A (en) * | 2020-07-03 | 2020-10-13 | 北京市政建设集团有限责任公司 | Shield constructs machine knife dish telescopic machanism |
| CN111764913B (en) * | 2020-07-03 | 2022-02-25 | 北京市政建设集团有限责任公司 | Shield constructs machine knife dish telescopic machanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20150315 |
|
| EXPY | Termination of patent right or utility model |