CN205805566U - Scraper protection device for cobble stratum driving - Google Patents
Scraper protection device for cobble stratum driving Download PDFInfo
- Publication number
- CN205805566U CN205805566U CN201620788833.3U CN201620788833U CN205805566U CN 205805566 U CN205805566 U CN 205805566U CN 201620788833 U CN201620788833 U CN 201620788833U CN 205805566 U CN205805566 U CN 205805566U
- Authority
- CN
- China
- Prior art keywords
- cutter hub
- protection device
- wear
- hole
- scraper
- 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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Abstract
A kind of scraper protection device for cobble stratum driving, including cutter hub, one inclined plane is set on described cutter hub, multiple through hole it is machined with in described inclined plane, multiple described through holes are all vertically arranged, described via bottoms is threaded, top is that unthreaded hole and base diameter are less than upper diameter, described cutter hub is arranged on tool rest by bolt, it is provided with wear-resistant elements on described cutter hub outer surface, this device has reasonable in design, simple in construction, high efficiency, low cost, anti-wear performance is strong, the advantages such as strong shock resistance, shield machine edge blade protection device field can be promoted the use of.
Description
Technical field
This utility model belongs to shield machine cutting-tool engineering field, be specifically related to a kind of for cobble stratum driving
Scraper protection device.
Background technology
Shield machine is when cobble stratum tunnels, and its scraper role generally peels off stirring action, especially edge
Scraper, does not undertake the effect of main digging rock, the dregs of its effect mainly cleaning periphery excavation, prevents cutterhead outer rim
Directly abrasion, it is ensured that the precision of digging diameter, when construction runs into the firm hard formation such as rock, sandy gravel, cutter can be impacted
Accelerated wear test, strong impact can make the alloy on cutter come off, cutter hub eccentric wear, and this will largely effect on the excavation progress in tunnel；
It addition, hard alloy is relatively costly, after hard alloy comes off, the wear resistance decrease of cutter hub, abrasion is extremely serious, accelerates contracting
Short cutter life.Therefore working out the shield scraper that anti-wear performance is strong, strong shock resistance, service efficiency are high is urgently to solve at present
Problem certainly.
Summary of the invention
Technical problem to be solved in the utility model is to overcome that above-mentioned shield machine scraper is easy to wear, service life is short
Defect, provide that a kind of reasonable in design, simple in construction, high efficiency, low cost, anti-wear performance be strong, strong shock resistance for ovum
The scraper protection device of gravel stratum driving.
Solve above-mentioned technical problem to the technical scheme is that and include cutter hub, described cutter hub arranges an inclined plane, described
Inclined plane on be machined with multiple through hole, multiple described through holes are all vertically arranged, and described through hole bottom is threaded, top
For unthreaded hole, the aperture in the lower thread hole of described through hole is less than the aperture of top unthreaded hole, and described cutter hub is arranged at by bolt
On tool rest, described cutter hub outer surface is provided with wear-resistant elements.
Wear-resistant elements of the present utility model includes adhesive layer, wearing layer, capping layer, and described adhesive layer is arranged at cutter hub
Outer surface, described wearing layer is arranged on adhesive layer, and the outer surface of wearing layer is provided with capping layer.
The shape of wear-resistant elements of the present utility model adapts with the shape of cutter hub.
The thickness of wear-resistant elements of the present utility model is 3～5mm.
The geometry of inclined plane of the present utility model is eccentric circular ring.
The outer surface that have employed at cutter hub due to this utility model is provided with wear-resistant elements, and described wear-resistant elements includes attached
Layer, wearing layer, skin of paint, in shield machine tunneling process, when scraper cleaning periphery excavation dregs time, due to dregs directly with
Wear-resistant elements contacts, and alleviates the impact wear that cutter hub receives, and increases anti-wear performance and the shock resistance of cutter hub, ensures simultaneously
The precision of digging diameter, this device has that reasonable in design, simple in construction, high efficiency, low cost, anti-wear performance be strong, shock resistance energy
The advantages such as power is strong, can promote the use of shield machine edge blade protection device field.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of this utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural representation of wearing layer 1 in Fig. 1.
In figure: 1, wear-resistant elements；2, bolt；3, cutter hub；4, tool rest；A, through hole；1-1 adhesive layer；1-2 wearing layer；1-3 covers
Surface layer.
Detailed description of the invention
With embodiment, this utility model is described in further details below in conjunction with the accompanying drawings, but this utility model is not limited to this
A little embodiments.
In FIG, this utility model includes for the scraper protection device of cobble stratum driving:
Being machined with an inclined plane on cutter hub 3, the cross sectional shape of described inclined plane is eccentric circular ring, is machined with in inclined plane
Multiple through hole a, described multiple through hole a are all vertically arranged, and the bottom of through hole a is threaded, top is unthreaded hole, and described is logical
The aperture in the lower thread hole of hole a is less than the aperture of top unthreaded hole, and cutter hub 3 is arranged on by the bolt 2 being arranged in screwed hole
On tool rest 4, the outer surface at cutter hub 3 is processed and is deposited with wear-resistant elements 1, in shield machine tunneling process, when scraper cleaning periphery
During excavation dregs, owing to dregs directly contacts with wear-resistant elements 1, alleviate the abrasion of cutter hub 1 impact, increase cutter hub 1
Anti-wear performance and shock resistance, ensure the precision of digging diameter simultaneously.
In figure 3, described wear-resistant elements 1 is connected and composed by adhesive layer 1-1, wearing layer 1-2, capping layer 1-3, adhesive layer
1-1 end face use hardfacing solder wire material welding deposition weld on the upper surface, other end of cutter hub 3 be deposited with wear-resisting
The outer surface built-up welding high chromium cast iron material of layer 1-2, wearing layer 1-2 forms capping layer 1-3, wearing layer 1-2 and uses strike hardening resistance to
Break-in gold copper-base alloy, it should be apparent that, described wear resistant alloy material can be martensite wear resistant steel, pearlite abrasion-resistant stee, Gao Ge
The wear-resisting high-strength degree material such as alloy cast iron or tungsten carbide.Built-up welding capping layer 1-3 can increase the initial wear-resisting performance of wear-resistant elements 1, makes
The stability of wear-resistant elements 1 is more preferable.The shape of wear-resistant elements 1 specifically determines according to the shape of cutter hub 1, it is ensured that the appearance of cutter hub 1
Face is provided with wear-resistant elements 1, and in order to make wear-resistant elements 1 anti-wear performance more preferable, the thickness of wear-resistant elements 1 is 4mm, similarly,
According to the geological conditions of excavation soil layer, the thickness of wear-resistant elements 1 correspondingly can be adjusted according to geological conditions with 3mm5mm
Whole, the thickness of wear-resistant elements 1 specifically determines according to the shape of cutter hub 1 and the geological conditions of excavation soil layer.
Operation principle of the present utility model is as follows:
In shield machine tunneling process, when scraper cleaning periphery excavation dregs, due to dregs directly with wear-resistant elements 1 phase
Contact, alleviates the impact wear that cutter hub 1 receives, and increases anti-wear performance and the shock resistance of cutter hub 1, ensures digging diameter simultaneously
Precision.
Claims (5)
1. the scraper protection device for cobble stratum driving, it is characterised in that: include cutter hub, described cutter hub is arranged
One inclined plane, described inclined plane is machined with multiple through hole, and multiple described through holes are all vertically arranged, and described through hole bottom adds
Work has screw thread, top to be unthreaded hole, and the aperture in the lower thread hole of described through hole leads to less than the aperture of top unthreaded hole, described cutter hub
Cross bolt to be arranged on tool rest, described cutter hub outer surface is provided with wear-resistant elements.
Scraper protection device for cobble stratum driving the most according to claim 1, it is characterised in that: described is resistance to
Mill unit includes that adhesive layer, wearing layer, capping layer, described adhesive layer are arranged at the outer surface of cutter hub, and described wearing layer is arranged
On adhesive layer, the outer surface of wearing layer is provided with capping layer.
Scraper protection device for cobble stratum driving the most according to claim 2, it is characterised in that: described is resistance to
The shape of mill unit adapts with the shape of cutter hub.
Scraper protection device for cobble stratum driving the most according to claim 3, it is characterised in that: described is resistance to
The thickness of mill unit is 3～5mm.
Scraper protection device for cobble stratum driving the most according to claim 1, it is characterised in that: described inclines
The geometry on inclined-plane is eccentric circular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620788833.3U CN205805566U (en) | 2016-07-25 | 2016-07-25 | Scraper protection device for cobble stratum driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620788833.3U CN205805566U (en) | 2016-07-25 | 2016-07-25 | Scraper protection device for cobble stratum driving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205805566U true CN205805566U (en) | 2016-12-14 |
Family
ID=57507481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620788833.3U Expired - Fee Related CN205805566U (en) | 2016-07-25 | 2016-07-25 | Scraper protection device for cobble stratum driving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205805566U (en) |
-
2016
- 2016-07-25 CN CN201620788833.3U patent/CN205805566U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20210725 |