CN202039855U - Wear-resistant cutterhead of shield machine - Google Patents
Wear-resistant cutterhead of shield machine Download PDFInfo
- Publication number
- CN202039855U CN202039855U CN2011201098051U CN201120109805U CN202039855U CN 202039855 U CN202039855 U CN 202039855U CN 2011201098051 U CN2011201098051 U CN 2011201098051U CN 201120109805 U CN201120109805 U CN 201120109805U CN 202039855 U CN202039855 U CN 202039855U
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- cutter
- cutterhead
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- shield machine
- resistant
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Abstract
The utility model provides a wear-resistant cutterhead of a shield machine. The cutterhead of the shield machine comprises a cutterhead panel, a cutterhead case body, a plurality of foam nozzles, a single-blade hob, a replaceable shell cutter, a cutter holder U-shaped block as well as a plurality of scrapers and serrated cutters, wherein the foam nozzles, the single-blade hob, the replaceable shell cutter, the cutter holder U-shaped block, the scrapers and the serrated cutters are annularly arranged on the cutterhead panel. The wear-resistant cutterhead of the shield machine is characterized in that each cut on the side face of the cutterhead is additionally provided with two high-strength wear-resistant blocks on which wear-resistant alloy blocks are embedded, and two sides of the cutter holder U-shaped block are additionally welded with wear-resistant protective blocks. The wear-resistant cutterhead of the shield machine has the functions of changing the arrangement of the cutters, effectively reducing the torsion of the cutterhead and preventing blockage due to mud cake formed in the center of the cutterhead; the cutters with better wear resistance are selected, the wear-resistant blocks are additionally arranged, and the service life of each cutter is prolonged; and the cutterhead has a large aperture opening ratio and a reasonable opening size.
Description
Technical field
The utility model relates to cutter head of shield machine, particularly a kind of wear-resisting formula cutter head of shield machine.
Background technology
Since the sixties in 20th century, along with the development and utilization of people to underground space, shield structure technology has obtained significant development in China, it is widely used in engineerings such as underground rail traffic, aqueduct, electric power tunnel, and shield machine then is the most frequently used large-scale high-tech integration engineering equipment of shield-tunneling construction technology.At present, cross sand-pebble layer in the underground rail traffic and mainly adopt balancing earth-pressure shielding machine.
Earth pressure balanced shield, EPBS is to enter Tu Cang by cutterhead excavation face dregs, and adjustable screw machine rotating speed and fltting speed make Tu Cang and face pressure reach the state of a dynamic equilibrium.Cutterhead is an important component part of shield machine, mainly plays the excavation dregs, stablizes face, stirs dregs, and the structure design of cutterhead and cutter configuration are directly connected to the success or failure of shield-tunneling construction.When shield machine was worked at sand-pebble layer, because cobble hardness height can reach 200Mpa, cobble was very serious to the wearing and tearing of knife disc tool screw machine in mining process.
Earth pressure balanced shield, EPBS commonly used is a panel type, aperture opening ratio about 34%, and opening part is provided with grid, adds the weldering wearing plate on the panel; The periphery cutter adopts 11 the single-blade hobboing cutter, and the front adopts 21 removable shell cutter, and the center adopts 4 center fish tail cutter.The advantage of this cutterhead is: because the aperture opening ratio height helps dregs and enters Tu Cang smoothly, can reduce part wearing and tearing, improve fltting speed; The cutterhead opening part is provided with grid, can effectively tackle the super large cobble that screw machine can not be discharged; The cutterhead panel contains wear-resisting steel plate and wear-resisting grid, prevents the excessive wear of dregs counter plate; The cutterhead panel is provided with eight dregs modifying agent injection orifices, guarantees the injection rate of additives such as foam, improves the dregs improved effect; And the mixed configuration of hobboing cutter and broad knife helps dregs and discharges smoothly.
But also there is following shortcoming in this cutterhead:
(1) cutterhead periphery wear-resisting measure is not enough, causes otch to grind bigger and bigger, and some bowlder stones are easy to be stuck in incision, increases the cutterhead moment of torsion;
(2) cutter U type tile height is higher than its peripheral surface plate height, causes U type piece to be worn, and cutter can not get effective protection, cutter end cap, cutter shaft wearing and tearing occur, increases the cost of charp tool;
(3) cutterhead center imperforation easily causes the centre junction mud cake, and thrust increases.
(4) the foam mouth easily stops up, and causes the dregs improved effect bad, the driving difficulty.
Summary of the invention
It is good that the purpose of this utility model provides a kind of anti-wear performance, prevents the cutterhead distortion, strengthens the application life of cutter, and the wear-resisting formula cutter head of shield machine of avoiding the foam mouth to stop up.
Described a kind of wear-resisting formula cutter head of shield machine comprises cutterhead panel, cutterhead casing and is arranged circumferentially a plurality of foam mouths, single-blade hobboing cutter, changeable type shell cutter, tool rest U type piece, many scraper and serrated knife on the cutterhead panel; it is characterized in that: add twice high-strength wearable piece in each incision of cutterhead side; be inlaid with wear-resisting alloy block on the wear-resistant block, add weldering wear-resistant protection piece on tool rest U type piece both sides.
Described cutter head of shield machine also comprises center goat's horn cutter or the center fish tail cutter that is arranged on cutterhead face plate center place.
Be provided with the cutter U-shaped protection cutter that prevents that earth from entering in each foam jet outside, two openends of protection cutter and the welding of cutterhead panel are provided with wearing layer at the external surface of protecting cutter, and the face that the seals two ends of protection cutter respectively are embedded an alloy block.
The height of protection piece is higher than tool rest U type piece 10mm.
The cutter ring hardness of described hobboing cutter is at HRC57～HRC60, and cutter ring thickness is at 28mm～32mm, and cutter hub hardness is at HRC40～HRC45.
The utility model beneficial effect: 1. increasing at cutterhead side cutout place has high-strength wearable fast, can effectively protect the cutterhead otch, prevents that cobble is stuck in otch and influences the cutterhead moment of torsion.
2. add weldering wear-resistant protection piece on tool rest U type piece both sides, prevent its wearing and tearing, can play the effect of protection cutter.
3. center goat's horn cutter or center fish tail cutter have been taked in the cutterhead center, have effectively solved the astomous defective in cutterhead center, help preventing that the incrusted situation in cutterhead center from taking place; Center goat's horn cutter also plays the effect of tearing face, and then stratum, fragmentation are than bowlder stone around the hobboing cutter extruding, and other cutters scrape face off, thereby realize driving.
The utility model has changed the arrangement of cutter, effectively reduces the cutterhead moment of torsion, prevents to occur stopping up because of cutterhead centre junction mud cake, select anti-wear performance cutter preferably, and increase wear-resistant block, strengthened the application life of cutter, the cutterhead aperture opening ratio is big, and opening size is reasonable.
Description of drawings
Fig. 1 is a panel construction schematic diagram of the present utility model,
Fig. 2 is a lateral view of the present utility model,
Fig. 3 is the enlarged diagram of high-strength wearable piece,
Fig. 4 is the partial enlarged drawing of tool rest U type piece,
Fig. 5 is the structural representation of U type protection cutter.
Among the figure: 1-cutterhead panel, 2-cutterhead casing, 3-foam mouth; 4-single-blade hobboing cutter, 5-shell cutter, 6-tool rest U type piece; 7-center goat's horn cutter or center fish tail cutter, 8-wear-resistant protection piece, 9-high-strength wearable piece; the 10-wear-resisting alloy block; 11-protects cutter, 12-wearing layer, 13-alloy block; the 14-scraper, the 15-serrated knife.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.Among Fig. 1,2,3,4,5, described a kind of wear-resisting formula cutter head of shield machine comprises cutterhead panel 1, cutterhead casing 2 and is arranged circumferentially a plurality of foam mouths 3, single-blade hobboing cutter 4, changeable type shell cutter 5, tool rest U type piece 6, many scraper 14 and serrated knife 15 on cutterhead panel 1, it is characterized in that: add twice high-strength wearable piece 9 in each incision of cutterhead side, be inlaid with wear-resisting alloy block 10 on the high-strength wearable piece 9, can effectively protect the cutterhead otch, prevent that cobble is stuck in otch and influences the cutterhead moment of torsion; Add weldering wear-resistant protection piece 8 on tool rest U type piece 6 both sides, the height of wear-resistant protection piece 8 is higher than U type piece 610mm, can prevent cutter end cap, cutter shaft wearing and tearing, plays the effect of protection cutter.
Among Fig. 1, described cutter head of shield machine also comprises center goat's horn cutter or the center fish tail cutter 7 that is arranged on cutterhead panel 1 center, has effectively solved the astomous defective in cutterhead center, helps preventing that the incrusted situation in cutterhead center from taking place.Center goat's horn cutter or center fish tail cutter 7 also play the effect of tearing face, and then stratum, fragmentation are than bowlder stone around the hobboing cutter extruding, and other cutters scrape face off, thereby realize driving.
Among Fig. 1,5; be provided with the U-shaped protection cutter 11 that prevents that earth from entering in each foam jet 3 outside; two openends of protection cutter 11 and 1 welding of cutterhead panel are provided with wearing layer 12 at the external surface of protecting cutter 11, and the face that the seals two ends of protection cutter 11 respectively are embedded an alloy block 13.After the foam mouth welded a kind of foam mouth protection cutter, the situation of foam line clogging was rare, had improved dregs improvement efficient greatly, thereby realized driving smoothly.
The cutter ring hardness of described hobboing cutter is at HRC57～HRC60, and cutter ring thickness is at 28mm～32mm, and cutter hub hardness has been strengthened cutter hardness at HRC40～HRC45, increases the application life of cutter.
Claims (1)
1. wear-resisting formula cutter head of shield machine, comprise cutterhead panel (1), cutterhead casing (2) and be arranged circumferentially a plurality of foam mouths (3), single-blade hobboing cutter (4), changeable type shell cutter (5), tool rest U type piece (6), many on cutterhead panel (1) scraper (14) and serrated knife (15), it is characterized in that: add twice high-strength wearable piece (9) in each incision of cutterhead side, be inlaid with wear-resisting alloy block (10) on the high-strength wearable piece (9); Add weldering wear-resistant protection piece (8) on tool rest U type piece (6) both sides.
2. a kind of wear-resisting formula cutter head of shield machine according to claim 1 is characterized in that: described cutter head of shield machine also comprises center goat's horn cutter or the center fish tail cutter (7) that is arranged on cutterhead panel (1) center.
3. a kind of wear-resisting formula cutter head of shield machine according to claim 1 and 2 is characterized in that: be provided with the U-shaped protection cutter (11) that prevents that earth from entering in each foam jet (3) outside, two openends of protection cutter (11) and cutterhead panel (1) welding; External surface at protection cutter (11) is provided with wearing layer (12); The face that the seals two ends of protection cutter (11) respectively are embedded an alloy block (13).
4. a kind of wear-resisting formula cutter head of shield machine according to claim 1 and 2 is characterized in that: the height of wear-resistant protection piece (8) is higher than tool rest U type piece (6) 10mm.
5. a kind of wear-resisting formula cutter head of shield machine according to claim 1 and 2 is characterized in that: the cutter ring hardness of described hobboing cutter is at HRC57～HRC60, and cutter ring thickness is at 28mm～32mm, and cutter hub hardness is at HRC40～HRC45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201098051U CN202039855U (en) | 2011-04-14 | 2011-04-14 | Wear-resistant cutterhead of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201098051U CN202039855U (en) | 2011-04-14 | 2011-04-14 | Wear-resistant cutterhead of shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202039855U true CN202039855U (en) | 2011-11-16 |
Family
ID=44967304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201098051U Expired - Fee Related CN202039855U (en) | 2011-04-14 | 2011-04-14 | Wear-resistant cutterhead of shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202039855U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493814A (en) * | 2011-12-05 | 2012-06-13 | 上海隧道工程股份有限公司 | Shield centre revolving joint |
| CN102839978A (en) * | 2012-09-19 | 2012-12-26 | 华北电力大学 | Tapered cutter of shield tunneling machine |
| CN103061775A (en) * | 2012-11-15 | 2013-04-24 | 山东天工岩土工程设备有限公司 | Fishtail center cutter for shield machine |
| CN106493514A (en) * | 2016-09-19 | 2017-03-15 | 南昌大学 | A kind of shield protects the reproducing method of cutter |
| CN107762525A (en) * | 2017-11-20 | 2018-03-06 | 华北电力大学 | Changing cutter head panel thickness reduces the method and its cutterhead of TBM Construction Vibrations |
| CN107762527A (en) * | 2017-11-10 | 2018-03-06 | 安徽路鼎科技股份有限公司 | Cutterhead can be retracted |
-
2011
- 2011-04-14 CN CN2011201098051U patent/CN202039855U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493814A (en) * | 2011-12-05 | 2012-06-13 | 上海隧道工程股份有限公司 | Shield centre revolving joint |
| CN102839978A (en) * | 2012-09-19 | 2012-12-26 | 华北电力大学 | Tapered cutter of shield tunneling machine |
| CN102839978B (en) * | 2012-09-19 | 2014-10-08 | 华北电力大学 | Tapered cutter of shield tunneling machine |
| CN103061775A (en) * | 2012-11-15 | 2013-04-24 | 山东天工岩土工程设备有限公司 | Fishtail center cutter for shield machine |
| CN106493514A (en) * | 2016-09-19 | 2017-03-15 | 南昌大学 | A kind of shield protects the reproducing method of cutter |
| CN106493514B (en) * | 2016-09-19 | 2018-11-09 | 南昌大学 | A kind of reproducing method of shield protection cutter |
| CN107762527A (en) * | 2017-11-10 | 2018-03-06 | 安徽路鼎科技股份有限公司 | Cutterhead can be retracted |
| CN107762525A (en) * | 2017-11-20 | 2018-03-06 | 华北电力大学 | Changing cutter head panel thickness reduces the method and its cutterhead of TBM Construction Vibrations |
| CN107762525B (en) * | 2017-11-20 | 2019-09-03 | 华北电力大学 | Changing cutter head panel thickness reduces the method and its cutterhead of TBM Construction Vibration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: CHINA RAILROAD 11 BUREAU GROUP CO. LTD. Effective date: 20131121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131121 Address after: 430074 23 Huaguang Road, East Lake Development Zone, Wuhan, Hubei Patentee after: Urban Mass Transit Engineering Co., Ltd. of China Railway 11th Bureau Group Address before: 430074 23 Huaguang Road, East Lake Development Zone, Wuhan, Hubei Patentee before: Urban Mass Transit Engineering Co., Ltd. of China Railway 11th Bureau Group Patentee before: China Railroad 11 Bureau Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20170414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |