CN201753604U - Wear-resisting ring of cutter head of subway tunnel shield machine - Google Patents
Wear-resisting ring of cutter head of subway tunnel shield machine Download PDFInfo
- Publication number
- CN201753604U CN201753604U CN2010202793185U CN201020279318U CN201753604U CN 201753604 U CN201753604 U CN 201753604U CN 2010202793185 U CN2010202793185 U CN 2010202793185U CN 201020279318 U CN201020279318 U CN 201020279318U CN 201753604 U CN201753604 U CN 201753604U
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- Prior art keywords
- wear
- cutter head
- wear ring
- alloy body
- ring
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- Expired - Fee Related
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a wear-resisting ring of a cutter head of a subway tunnel shield machine, which is made of steel plate and is located between the cutter head (1) and a front shield cutting ring (5) and is also fixed on the cutter head (1). The wear-resisting ring is characterized in that a groove is arranged on the outer circumferential surface of the wear-resisting ring (4); an alloy body (2) is welded and fixed in the groove; and the rear end surface of the alloy body (2) is level to or protrudes out of the rear end surface of the steel plate of the wear-resisting ring (4). The wear-resisting ring has the advantages that the wear resistance is good, the cutter head can be effectively prevented from being stuck, the construction cost is reduced, and the construction efficiency is improved.
Description
Technical field
The utility model relates to constructing tunnel shield machine parts, relates in particular to a kind of wear ring of subway tunnel cutter head of shield machine.
Background technology
Shield machine is a kind of special engineering machinery of tunnel piercing.The front portion of existing shield machine mainly contains: the cutterhead of forefront, the anterior shield otch ring at cutterhead rear portion and again after Tu Cang etc.Scraper, hobboing cutter, multiple cutter such as cutter in advance are installed on the cutterhead, and the perforate on the cutterhead forms slag inlet.During work, cutterhead rotation under the rotation of cutterhead drives, is installed in various cutters on the cutterhead and finishes excavation cutting to the soil body.The soil body that cuts enters the Tu Cang at anterior shield otch ring and rear portion thereof by the slag inlet on the cutterhead, carries backward again.
The cutterhead volume is big, cost of manufacture is high, and existing cutterhead is normally made with not wear-resisting metal material.The cutterhead wear ring of being made by steel plate is installed between the anterior shield otch ring at cutterhead and rear portion, wear ring is fixed on the cutterhead rear portion, rotate with cutterhead, and anterior shield otch ring does not rotate, therefore interval about 10mm is arranged between the wear ring of cutterhead and the anterior shield otch ring, in tunneling process, will there be the soil body to enter anterior shield otch ring by this gap.The effect of wear ring is exactly the wearing and tearing of the minimizing soil body herein to the cutterhead rear portion, the application life of improving cutterhead.But because existing wear ring is made of steel plate, hardness is lower, abrasion resistance is relatively poor, sandstone in the soil body still can produce bigger abrasive action to wear ring, make wear ring produce irregular wearing and tearing, and cause the sandstone more, that volume is bigger to be stuck between wear ring and the anterior shield otch ring, the rotation of cutterhead further is obstructed, so that stuck fault of cutterhead and accident occur.Therefore existing wear ring needs frequent the replacing, the construction cost height, and efficiency of construction is low; And there is a potential safety hazard.
The utility model content
The purpose of this utility model just provides a kind of wear ring of subway tunnel cutter head of shield machine, and its abrasion resistance is good, can prevent more effectively that cutterhead is stuck, reduces construction cost, improves efficiency of construction.
The utility model is realized its goal of the invention, the technical scheme that is adopted is: a kind of wear ring of subway tunnel cutter head of shield machine, make by steel plate, between cutterhead and anterior shield otch ring, and be fixed on the cutterhead, its design feature is: the outer peripheral face of wear ring is provided with groove, welds fixedly alloy body in the groove, and the rear end face of the rear end face of alloy body and wear ring steel plate maintains an equal level or be outstanding.
Compared with prior art, the beneficial effects of the utility model are: have groove on the outer peripheral face of wear ring, weld fixedly alloy body in the groove, because the anti-wear performance of alloy body is good, and because the rear end face of the rear end face of alloy body and wear ring steel plate is fair or outstanding.Therefore, fall into the sandstone between wear ring rear end face and anterior shield otch circumferential weld crack, with main high rigidity, the high-wearing feature alloy body that maintains an equal level with the wear ring rear end face or give prominence to contact, grinding, sandstone by grinding can enter Tu Cang smoothly, reduce abrasive action greatly to the remainder of wear ring, thereby obviously improve the application life of wear ring, effectively avoid the stuck phenomenon of cutterhead.Improve efficiency of construction, reduced cost.
The outer peripheral face of the end face of fixing alloy body and wear ring maintains an equal level in the above-mentioned groove.
Like this, can reduce sandstone on the wear ring outer peripheral face, further prolong the application life of wear ring the wearing and tearing of wear ring.
Alloy body in the above-mentioned embedding groove is made up of polylith alloy body piece.
The acquisition expenses of polylith primary alloy body is lower than the expense of the big alloy body of monoblock.Therefore, can reduce the cost of wear ring,
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram that is installed on the shield machine.
The specific embodiment
Embodiment
Fig. 1 illustrates, and a kind of specific embodiment of the present utility model is: a kind of wear ring of subway tunnel cutter head of shield machine, make by steel plate, and between cutterhead 1 and anterior shield otch ring 5, and be fixed on the cutterhead 1.The outer peripheral face of wear ring 4 is provided with groove, welds fixedly alloy body 2 in the groove, and the rear end face of the rear end face of alloy body 2 and wear ring 4 steel plates maintains an equal level or be outstanding.The outer peripheral face of the end face of fixing alloy body 2 and wear ring 4 maintains an equal level in the groove.The alloy body 2 that embeds in the groove is made up of polylith alloy body piece.
Claims (3)
1. the wear ring of a subway tunnel cutter head of shield machine, make by steel plate, be positioned between cutterhead (1) and the anterior shield otch ring (5), and be fixed on the cutterhead (1), it is characterized in that: the outer peripheral face of described wear ring (4) is provided with groove, weld fixedly alloy body (2) in the groove, the rear end face of the rear end face of alloy body (2) and wear ring (4) steel plate maintains an equal level or is outstanding.
2. the wear ring of a kind of subway tunnel cutter head of shield machine according to claim 1 is characterized in that: the outer peripheral face of the end face of fixing alloy body (2) and wear ring (4) maintains an equal level in the described groove.
3. the wear ring of a kind of subway tunnel cutter head of shield machine according to claim 1 is characterized in that: the alloy body (2) in the described embedding groove is made up of polylith alloy body piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202793185U CN201753604U (en) | 2010-08-03 | 2010-08-03 | Wear-resisting ring of cutter head of subway tunnel shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202793185U CN201753604U (en) | 2010-08-03 | 2010-08-03 | Wear-resisting ring of cutter head of subway tunnel shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201753604U true CN201753604U (en) | 2011-03-02 |
Family
ID=43621336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202793185U Expired - Fee Related CN201753604U (en) | 2010-08-03 | 2010-08-03 | Wear-resisting ring of cutter head of subway tunnel shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201753604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899979A (en) * | 2010-08-03 | 2010-12-01 | 中铁十三局集团第二工程有限公司 | Wear-resistant ring for cutter head of shield machine |
-
2010
- 2010-08-03 CN CN2010202793185U patent/CN201753604U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899979A (en) * | 2010-08-03 | 2010-12-01 | 中铁十三局集团第二工程有限公司 | Wear-resistant ring for cutter head of shield machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110302 Termination date: 20120803 |