CN207620803U - A kind of replaceable novel shield cutter - Google Patents
A kind of replaceable novel shield cutter Download PDFInfo
- Publication number
- CN207620803U CN207620803U CN201721847779.6U CN201721847779U CN207620803U CN 207620803 U CN207620803 U CN 207620803U CN 201721847779 U CN201721847779 U CN 201721847779U CN 207620803 U CN207620803 U CN 207620803U
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- Prior art keywords
- cutter
- cutter head
- cutter hub
- hub
- shield
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a kind of replaceable novel shield cutters, it is related to shield knife technical field, to solve the problems, such as that shield knife replacement cost is high in the prior art, it includes the cutter hub being welded on the cutterhead of shield machine and the cutter head that is detachably connected with cutter hub, multiple threaded holes are provided on the cutter hub, it is provided with multiple through-holes on the cutter head, the fixing bolt being threadedly coupled with threaded hole is provided with across the through-hole.By implementing the technical program, turns fixing bolt and replacement to the cutter head of abrasion can be completed, process is easy, simple in structure, and reduces the use cost of cutter head.
Description
Technical field
The utility model is related to shield knife technical fields, more particularly to a kind of replaceable novel shield cutter.
Background technology
Shield machine is named as shielding tunnel excavator entirely, is a kind of special engineering machinery of tunnel piercing, modern shield driving
Machine integrates light, mechanical, electrical, liquid, sensing, information technology, has and excavates the cutting soil body, conveying soil quarrel, assembled tunnel-liner, surveys
It measures and is oriented to the functions such as correction, be related to the multi-door subject technology such as geology, building, machinery, mechanics, hydraulic pressure, electrical, control, measurement, and
And the design and manufacture of " cutting the garment according to the figure " formula are carried out according to different geology, reliability requirement is high.Shield excavation machine is extensive
For Tunnel Engineering such as subway, railway, highway, municipal administration, water power.
With the development of China's urban construction, the underground engineerings such as Underground Rail Transit, cross-river tunnel increasingly increase, tunnel
Shield driving distance is also increasingly longer.Shield machine is in weak soil tunneling process, and mainly using hard alloy shield cutter, cutter is
Consumables are easy abrasion abrasion.For shield machine after continuously being promoted through long-distance, service life depends primarily on bite
Service life, traditional shield cutter mostly use hard alloy and are brazed with steel matrix, and handle of a knife and cutter head are integral, long-term
Can be damaged using rear blade causes bite that can not use, but chip knife shank portion often stands intact, if entirety is more
Changing bite, it will cause larger wastes, therefore it is current urgent need solution to design a kind of cutter head and the chip knife that handle of a knife can be dismantled
Certainly the problem of.
Utility model content
The purpose of this utility model is that：The utility model, which provides, a kind of being convenient for changing the replaceable new of shield knife cutter head
Type shield cutter.
The utility model specifically uses following technical scheme to achieve the goals above：
A kind of replaceable novel shield cutter, including the cutter hub that is welded on the cutterhead of shield machine and detachable with cutter hub
The cutter head of connection is provided with multiple threaded holes on the cutter hub, multiple through-holes is provided on the cutter head, are set across the through-hole
It is equipped with the fixing bolt being threadedly coupled with threaded hole.
Operation principle：After shield machine works one end time, cutter head is worn, and unscrews the knife that fixing bolt more renews at this time
Head, so only needs replacing the tool bit part being worn, and body portion is still reused, and reduces the wave of material
Take, has saved cost.Fixing bolt is connected as a kind of common detachable connection simultaneously, and borrowing the tools such as spanner can be square
Cutter head is replaced just.
Further, the separate one end that connect with cutter hub of the cutter head is provided with the pockets being connected to through-hole, the receiving
The diameter of groove is more than the external diameter of a circle of nut of fixing bolt.So when using fixing bolt connection cutter head with cutter hub,
The nut of fixing bolt can be hidden in pockets, when avoiding shield machine work cutter head cutting rock-soil layer, fixing bolt
Nut destroyed by the frictional force of rock-soil layer fixing bolt to cutter head and the fixed stability of cutter hub.
Further, the separate longer sides edge that one end is connect with cutter hub of the cutter head is set as the first inclined surface.
Further, the separate shorter edge edge that one end is connect with cutter hub of the cutter head is set as the second inclined surface.
Further, the separate one end that connect with cutter head of the cutter hub is set as and the matched structure of cutter head of shield machine.Shield machine
There is region of different shapes on cutterhead, connect cutter hub is separate one end with cutter head and be set as and the matched structure side of cutter head of shield machine
Just cutter hub is welded on cutterhead.
Further, the separate one end that connect with cutter head of the cutter hub is set as flat shape.Flat shape can with it is smooth on cutterhead
Part matches, and cutter hub is facilitated to be welded on flat portion.
Further, the cutter hub is separate connect one end with cutter head and is provided with arc structure.Arc structure can on cutterhead
The circular shaft part of protrusion matches and then cutter hub is facilitated to weld.
Further, the cutter head is made up using cast steel ZG42CrMnSi2Mo of cast steel method, and cutter head hardness is 55-
60HRC, toughness 300-550kJ/m2.Traditional shield knife uses hard alloy more, and cast steel ZG42CrMnSi2Mo prices are low
In hard alloy, the cost of cutter is reduced.
Further, the cutter hub material is 42CrMo, by modifier treatment, hardness 40-45HRC.
Further, the fixing bolt selects high strength stainless steel bolt.Select high strength stainless steel bolt can enhance cutter head with
The stabilization and fastness of cutter hub connection, and increase its corrosion resistance, prolong the service life.
The beneficial effects of the utility model are as follows：
One, a kind of replaceable novel shield cutter of the utility model, through-hole is arranged on cutter head, spiral shell is arranged on cutter hub
Pit is simultaneously connected the two by fixing bolt, convenient to be replaced to the cutter head of abrasion, and cutter hub can be used for multiple times, and reduce
The wastes of founding materials, has saved cost；
Two, a kind of replaceable novel shield cutter of the utility model selects cast steel ZG42CrMnSi2Mo to be closed instead of hard
Gold reduces the cost of cutter.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment cutter head；
Fig. 2 is the structural schematic diagram of the flat cutter hub of the utility model embodiment；
Fig. 3 is the structural schematic diagram of the utility model embodiment circular arc cutter hub；
Fig. 4 is the structural schematic diagram that cutter head is mounted on flat cutter hub；
Fig. 5 is the section view explosive view of cutter head and flat cutter hub；
Fig. 6 is the structural schematic diagram that cutter head is mounted on circular arc cutter hub.
Reference numeral：1, cutter hub；2, cutter head；3, threaded hole；4, through-hole；5, fixing bolt；6, pockets；7, first inclines
Inclined-plane；8, the second inclined surface.
Specific implementation mode
In order to which those skilled in the art are better understood from the utility model, below in conjunction with the accompanying drawings with following embodiment to this
Utility model is described in further detail.
Embodiment 1
As shown in Fig. 1 to 6, the present embodiment provides a kind of replaceable novel shield cutters, including are welded on shield machine
Cutter hub 1 on cutterhead and the cutter head 2 being detachably connected with cutter hub 1 are provided with 3 threaded holes 3 on cutter hub 1, are provided on cutter head 2
3 through-holes 4 are provided with the fixing bolt 5 being threadedly coupled with threaded hole 3 across through-hole 4.
In use, only needing the threaded hole 3 being aligned the through-hole 4 on cutter head 2 on cutter hub 1, then fixing bolt 5 is passed through
Through-hole 4 is threaded into hole 3.
Embodiment 2
As shown in Fig. 1 to 6, the present embodiment is further improved on the basis of embodiment 1, and specially cutter head 2 is separate
It connect one end with cutter hub 1 and is provided with the pockets 6 being connected to through-hole 4, the diameter of pockets 6 is more than the spiral shell of fixing bolt 5
The external diameter of a circle of cap.The separate longer sides edge that one end is connect with cutter hub 1 of cutter head 2 is set as the first inclined surface 7.Cutter head 2 is separate
The shorter edge edge that one end is connect with cutter hub 1 is set as the second inclined surface 8.Cutter hub 1 is separate to be connect one end with cutter head 2 and is set as flat
Shape.
Embodiment 3
As shown in Fig. 1 to 6, the present embodiment is further improved on the basis of embodiment 1 and embodiment 2, and cutter hub 1 is remote
It is provided with arc structure from one end is connect with cutter head 2.Cutter head 2 is made up using cast steel ZG42CrMnSi2Mo of cast steel method, cutter head
2 hardness are 55-60HRC, toughness 300-550kJ/m2.1 material of cutter hub is 42CrMo, by modifier treatment, hardness 40-
45HRC.Fixing bolt 5 selects high strength stainless steel bolt.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, it is equivalent made by every specification and accompanying drawing content with the utility model
Structure change similarly should be included in the scope of protection of the utility model.
Claims (10)
1. a kind of replaceable novel shield cutter, it is characterised in that：Including the cutter hub (1) that is welded on the cutterhead of shield machine and
The cutter head (2) being detachably connected with cutter hub (1) is provided with multiple threaded holes (3) on the cutter hub (1), is set on the cutter head (2)
Multiple through-holes (4) are equipped with, the through-hole (4) is provided with the fixing bolt (5) being threadedly coupled with threaded hole (3).
2. a kind of replaceable novel shield cutter according to claim 1, it is characterised in that：The cutter head (2) is separate
It connect one end with cutter hub (1) and is provided with the pockets (6) being connected to through-hole (4), the diameter of the pockets (6) is more than admittedly
Determine the external diameter of a circle of nut of bolt (5).
3. a kind of replaceable novel shield cutter according to claim 1, it is characterised in that：The cutter head (2) is separate
The longer sides edge that one end is connect with cutter hub (1) is set as the first inclined surface (7).
4. a kind of replaceable novel shield cutter according to claim 1, it is characterised in that：The cutter head (2) is separate
The shorter edge edge that one end is connect with cutter hub (1) is set as the second inclined surface (8).
5. a kind of replaceable novel shield cutter according to claim 1, it is characterised in that：The cutter hub (1) is separate
One end is connect with cutter head (2) to be set as and the matched structure of cutter head of shield machine.
6. a kind of replaceable novel shield cutter according to claim 5, it is characterised in that：The cutter hub (1) is separate
It connect one end with cutter head (2) and is set as flat shape.
7. a kind of replaceable novel shield cutter according to claim 6, it is characterised in that：The cutter hub (1) is separate
It connect one end with cutter head (2) and is provided with arc structure.
8. a kind of replaceable novel shield cutter according to claim 1, it is characterised in that：The cutter head (2) uses
Cast steel ZG42CrMnSi2Mo is made up of cast steel method, and cutter head (2) hardness is 55-60HRC, toughness 300-550kJ/m2.
9. a kind of replaceable novel shield cutter according to claim 1, it is characterised in that：Cutter hub (1) material
For 42CrMo, by modifier treatment, hardness 40-45HRC.
10. a kind of replaceable novel shield cutter according to claim 1, it is characterised in that：The fixing bolt (5)
Select high strength stainless steel bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721847779.6U CN207620803U (en) | 2017-12-26 | 2017-12-26 | A kind of replaceable novel shield cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721847779.6U CN207620803U (en) | 2017-12-26 | 2017-12-26 | A kind of replaceable novel shield cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207620803U true CN207620803U (en) | 2018-07-17 |
Family
ID=62829899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721847779.6U Active CN207620803U (en) | 2017-12-26 | 2017-12-26 | A kind of replaceable novel shield cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207620803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107508A (en) * | 2021-05-06 | 2021-07-13 | 辽宁宝旭膨润土科技有限公司 | Wear-resistant split type shield cutter with replaceable alloy cutting edge and replaceable cutter body |
-
2017
- 2017-12-26 CN CN201721847779.6U patent/CN207620803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107508A (en) * | 2021-05-06 | 2021-07-13 | 辽宁宝旭膨润土科技有限公司 | Wear-resistant split type shield cutter with replaceable alloy cutting edge and replaceable cutter body |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |