CN203603921U - Novel cutting head of shield machine - Google Patents
Novel cutting head of shield machine Download PDFInfo
- Publication number
- CN203603921U CN203603921U CN201320758388.2U CN201320758388U CN203603921U CN 203603921 U CN203603921 U CN 203603921U CN 201320758388 U CN201320758388 U CN 201320758388U CN 203603921 U CN203603921 U CN 203603921U
- Authority
- CN
- China
- Prior art keywords
- shield machine
- hobboing cutter
- cutter
- screw
- column
- 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
Links
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a novel cutting head of a shield machine. The cutting head is characterized by comprising a cutter body, wherein at least three column-shaped blind holes are formed in the end of the cutting edge of the cutter body and parallel with the axial direction of the cutter body, studs are arranged in the centers of the bottoms of the column-shaped blind holes, hobs made of column-shaped hard alloy are arranged in the column-shaped blind holes, screw holes are formed in the bottoms of the hobs, and the screw holes are in spiral connection with the studs in a matched mode. When one hob is damaged, the hob can be detached, construction can be carried out as long as another hob of the same type is assembled, and the service life of the hobs is prolonged.
Description
Technical field
The utility model relates to a kind of shield machine equipment, relates in particular to a kind of new tool bit of shield machine.
Background technology
In subway line, constructing tunnel, generally add a lot of hobboing cutters on special cutter head of shield machine, these hobboing cutters coordinate the scraper on cutterhead, shearing in the time of shield machine depth headwork, extruding and abrasive action broken formation.The hobboing cutter using in present domestic subway construction engineering adopts alloy steel to make, and strengthens hardness by modes such as case-carbonizing heat treatments, can cross HRC60 left and right, but case depth only can reach 2-3mm, can not meet the requirement of special formation.The inefficacy of hobboing cutter is mainly long or high-intensity wearing and tearing, shield machine driving 300m left and right, hobboing cutter with can reach 20mm left and right with the contact surface abrasion of sandstone, thereby cause hobboing cutter to lose efficacy in advance than scraper.In the construction of subway, the distance at two stations is generally in 1000m left and right, and the tool changing that opens a position with pressure in the underground tunneling process of shield machine between two stations implements that difficulty is large, the time is long, expense is high, therefore reality is at the hobboing cutter of a kind of anti-extrusion, wear-resistant, long service life of needs, and existing hobboing cutter head somewhere is damaged, whole hobboing cutter will all give up, and can not use without the part of damaging, and causes waste, in order to reach this object, general employing can be convenient for changing the cutterhead of hobboing cutter head.
Utility model content
In order to overcome the defect of above-mentioned prior art, the utility model provides a kind of new tool bit of shield machine, this new tool bit is existing hobboing cutter to be resolved into several little hobboing cutters be connected with cutter head, can anti-extrusion, wear-resistant, long service life, also damage that can a certain little hobboing cutter and whole cutter head is damaged, and be convenient to dismounting and change.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
The new tool bit of shield machine, it is characterized in that: comprise cutter hub, the blade end of described cutter hub has at least three cylindricality blind holes, the axially parallel of described cylindricality blind hole and cutter hub, the center of the bottom of described cylindricality blind hole is provided with double-screw bolt, the hobboing cutter that is provided with cylindricality carbide alloy in described cylindricality blind hole, the bottom of described hobboing cutter is provided with screw, and described screw coordinates spiral shell to be connected with described double-screw bolt.
The both sides, top of described hobboing cutter are respectively equipped with the platform for dismantling and installing.
the utlity model has following advantage:
1, in the utility model, the blade end of cutter hub has at least three cylindricality blind holes, the axially parallel of described cylindricality blind hole and cutter hub, the center of the bottom of described cylindricality blind hole is provided with double-screw bolt, in described cylindricality blind hole, be provided with the hobboing cutter of cylindricality carbide alloy, the bottom of described hobboing cutter is provided with screw, described screw coordinates spiral shell to be connected with described double-screw bolt, double-screw bolt spiral shell in the cylindricality blind hole that hobboing cutter arranges with cutter hub end by the screw on it is connected, in the time that a hobboing cutter damages, can pull down this hobboing cutter, changing the hobboing cutter of same type can construct, improve the application life of hobboing cutter.
2, in the utility model, the both sides, top of hobboing cutter are respectively equipped with the platform for dismantling and installing, so that dismounting and installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of cutter hub of the present utility model;
Fig. 3 is hob-cutter structure schematic diagram of the present utility model.
Mark in figure: 1 cutter hub, 2 cylindricality blind holes, 3 hobboing cutters, 4 screws, 5 double-screw bolts, 6 platforms.
The specific embodiment
As Fig. 1-as shown in Figure 3, the new tool bit of shield machine, comprise cutter hub 1, it is generally 3-5 that the blade end of described cutter hub 1 has at least three cylindricality blind hole 2(), axially parallel in cylindricality blind hole 2 with cutter hub 1, the center of the bottom of described cylindricality blind hole 2 is provided with double-screw bolt 5, is provided with the hobboing cutter 3 of cylindricality carbide alloy in described cylindricality blind hole 2, the bottom of described hobboing cutter 3 is provided with screw 4, and described screw 4 coordinates spiral shell to be connected with described double-screw bolt 5.In the time that a hobboing cutter damages, can pull down this hobboing cutter, change the hobboing cutter of same type and can construct, improve the application life of hobboing cutter.
Further, the both sides, top of hobboing cutter 3 are respectively equipped with the platform 7 for dismantling and installing.
Claims (2)
1. the new tool bit of shield machine, it is characterized in that: comprise cutter hub (1), the blade end of described cutter hub (1) has at least three cylindricality blind holes (2), the axially parallel of described cylindricality blind hole (2) and cutter hub (1), the center of the bottom of described cylindricality blind hole (2) is provided with double-screw bolt (5), the hobboing cutter (3) that is provided with cylindricality carbide alloy in described cylindricality blind hole (2), the bottom of described hobboing cutter (3) is provided with screw (4), and described screw (4) coordinates spiral shell to be connected with described double-screw bolt (5).
2. the new tool bit of shield machine according to claim 1, is characterized in that: the both sides, top of described hobboing cutter (3) are respectively equipped with the platform (7) for dismantling and installing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758388.2U CN203603921U (en) | 2013-11-27 | 2013-11-27 | Novel cutting head of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758388.2U CN203603921U (en) | 2013-11-27 | 2013-11-27 | Novel cutting head of shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603921U true CN203603921U (en) | 2014-05-21 |
Family
ID=50716598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320758388.2U Expired - Fee Related CN203603921U (en) | 2013-11-27 | 2013-11-27 | Novel cutting head of shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI830923B (en) * | 2019-08-28 | 2024-02-01 | 日商地中空間開發股份有限公司 | Cutting heads for shield boring machines and obstacle cutting |
-
2013
- 2013-11-27 CN CN201320758388.2U patent/CN203603921U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI830923B (en) * | 2019-08-28 | 2024-02-01 | 日商地中空間開發股份有限公司 | Cutting heads for shield boring machines and obstacle cutting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203129956U (en) | Square drill bit of rotating drill | |
| CN203603921U (en) | Novel cutting head of shield machine | |
| CN204920970U (en) | Tunnel boring machine blade disc | |
| CN203403824U (en) | PDC bit | |
| CN203669878U (en) | Diamond cutter for shield tunneling machine | |
| CN201696053U (en) | Hob ring for shield machine | |
| CN204024482U (en) | A kind of combined type PDC drill bit | |
| CN204140067U (en) | A kind of abrasion resistant type coal mining machine roller | |
| CN203961987U (en) | The full section cutterhead of mining rock gangway speedy drivage machine | |
| CN203603920U (en) | Rotary cutting head of shield machine | |
| CN203664719U (en) | Hole boring cutter rod | |
| CN204186387U (en) | A kind of coal mining machine roller | |
| CN110158691B (en) | Gear milling and double-wheel milling device | |
| CN203796180U (en) | Water-cooling type rock drill bit | |
| CN203559786U (en) | Drill bit of high-wind-pressure impacter | |
| CN204238858U (en) | A kind of mining reaming tool based on tank | |
| CN206983008U (en) | A kind of novel diamond thin-wall drill bit | |
| CN205000926U (en) | Compound piece cover cutter head of practical PDC | |
| CN104612590A (en) | Detachable six-blade drill bit for oil drilling | |
| CN204503261U (en) | A kind of metal pulverizer modular cutting tool assembly | |
| CN203680242U (en) | Heavy-type electric hammer | |
| CN204899781U (en) | Three wings down --hold drill bit | |
| CN205013006U (en) | Cutting blade disc of desert pipe pushing jack | |
| CN204700409U (en) | A kind of hydraulically powered pipe cutting auxiliary device | |
| CN202810667U (en) | Fishtail scraper drill |
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: 20140521 Termination date: 20151127 |