CN205135638U - High wearing feature shield constructs quick -witted hobbing cutter - Google Patents
High wearing feature shield constructs quick -witted hobbing cutter Download PDFInfo
- Publication number
- CN205135638U CN205135638U CN201520875522.6U CN201520875522U CN205135638U CN 205135638 U CN205135638 U CN 205135638U CN 201520875522 U CN201520875522 U CN 201520875522U CN 205135638 U CN205135638 U CN 205135638U
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- cutter
- wear plate
- cutter ring
- wearing feature
- hub
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Abstract
The utility model provides a high wearing feature shield constructs quick -witted hobbing cutter, the cutter ring of installation on including arbor, sword hub, end cover and being located the sword hub, the arbor setting in the sword hub, press from both sides between arbor and the sword hub and establish two sets of bearings, two sets of end cover and two sets of metal seal, bearing, end cover and metal seal set up along sword hub length degree central symmetry, set up the cutter ring in the outside of sword hub, the coincidence of cutter ring central line and sword hub length degree central line, the recess of a plurality of perpendicular to cutter ring surfaces is evenly offered on the cutter ring surface, and the embedding is fixed with wear pad in the recess, and wear pad upper portion protrusion cutter ring surface. The utility model discloses greatly increased the shield wearability of constructing quick -witted hobbing cutter, has reduced the change number of times of cutter body, and then has reduced construction cost, improve work efficiency.
Description
Technical field
The utility model belongs to the shield cutter technical field in underground construction application, is specifically related to a kind of Novel hobbing cutter of shield machine.
Background technology
In underground engineering field, the application of shield construction is more and more extensive.Shield method is widely used in the tunnel piercing of hard rock section.Shield machine in underground construction is bulky, weight large, and underground activities limited space, during work, cutter head of shield machine rotarily drives various cutter on it and completes the excavation to the soil body.Shield cutter, cutter be directly with the part of landwaste, rock contact, easy to wear and need replacing in time.Cutter head of shield machine and on cutter be divided into hobboing cutter and bite, wherein, the quality of hobboing cutter directly has influence on again cutting effect and the driving speed of shield machine.This just requires that shield cutter, cutter, particularly hobboing cutter have very high abrasion resistance.
The problem that traditional shield machine roller cutter in use reflects is: because wearing no resistance, easily there is the phenomenon of hobboing cutter cutter ring premature failure, thus need the shield structure frequently more renewed to roll scraper, at substantial manpower, financial resources and material resources, cause use cost higher.Therefore, the shield machine roller cutter in the urgent need to developing a kind of super abrasive solves current problems faced.
Utility model content
In order to solve the problems of the technologies described above, the utility model, according to the common invalidation of shield machine roller cutter and force analysis, provides a kind of shield machine roller cutter with high-wear resistance.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of high-wearing feature shield machine roller cutter, comprise cutter shaft, cutter hub, end cap and be positioned at the cutter ring that cutter hub is installed, described cutter shaft is arranged in cutter hub, sandwiched two groups of bearings between cutter shaft and cutter hub, two groups of end caps and two groups of metal sealings, described bearing, end cap and metal sealing are arranged along cutter hub length degree Central Symmetry, at the arranged outside cutter ring of cutter hub, described cutter ring center line overlaps with cutter hub length degree center line, described cutter ring surface uniform offers some grooves perpendicular to cutter ring external surface, groove is embedded in fixing wear plate, and cutter ring external surface is protruded on wear plate top.
Described wear plate is polycrystalline diamond sheet and/or composite polycrystal-diamond, and described composite polycrystal-diamond is made up of the cemented carbide substrate layer and superposed polycrystalline diamond layer being positioned at bottom.
Described wear plate is cylindrical, or the bottom of wear plate be cylindrical, top is cone shape.
Axial direction and the cutter ring external surface of described wear plate are perpendicular.
The diameter of described wear plate is 4-25mm, and axial length is 8-25mm.
The height of described wear plate top protrusion cutter ring external surface is less than the half of wear plate axial length.
Described wear plate is no less than 4 along the distributed quantity of cutter ring external surface.
By offering groove on cutter ring surface, and at groove internal fixtion wear plate, considerably increasing the abrasion resistance of shield machine roller cutter, decreasing the replacing number of times of cutter hub, and then reduce construction cost, increase work efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model structural representation.
Wherein, 1. cutter shaft, 2. end cap, 3. metal sealing, 4. cutter hub, 5. cutter ring, 6. composite polycrystal-diamond, 7. bearing, 8. polycrystalline diamond sheet.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1, as shown in Figure 1, the utility model embodiment provides a kind of high-wearing feature shield machine roller cutter, comprise cutter shaft 1, cutter hub 4, end cap 2 and the cutter ring 5 being positioned at installation on cutter hub 4, described cutter shaft 1 is arranged in cutter hub 4, sandwiched two groups of bearings 7 between cutter shaft 1 and cutter hub 4, two groups of end caps 2 and two groups of metal sealings 3, described bearing 7, end cap 2 and metal sealing 3 are symmetrical arranged along cutter hub 4 lengthwise centers, at the arranged outside cutter ring 5 of cutter hub 4, described cutter ring 5 center line overlaps with cutter hub length degree center line, described cutter ring 5 surface uniform offers some grooves perpendicular to cutter ring 5 external surface, groove is embedded in fixing wear plate, and cutter ring external surface is protruded on wear plate top.
Preferably, described wear plate is polycrystalline diamond sheet 8 and/or composite polycrystal-diamond 6, and described composite polycrystal-diamond 6 is made up of the cemented carbide substrate layer and superposed polycrystalline diamond layer being positioned at bottom.
Further, described polycrystalline diamond is that after being mixed by countless small diamond particles and cementing agent, sintering is made at high temperature under high pressure, has high-wearing feature feature.Composite polycrystal-diamond mixes the polycrystalline diamond layer that forms and cemented carbide substrate layer by diamond particles and cementing agent and sinters at high temperature under high pressure and make, and has the feature of high strength, high rigidity, high-wearing feature.
Operating principle of the present utility model is as follows: the utility model is by being arranged on cutter hub length degree center by cutter ring, described cutter ring is in " convex " font, groove is offered on cutter ring surface, the wear plate that material is polycrystalline diamond and polycrystalline diamond composite material is inlayed in groove, described composite polycrystal-diamond is made up of the cemented carbide substrate layer and superposed polycrystalline diamond layer being positioned at bottom, cutter ring external surface is protruded on wear plate top, thus improves cutting effect and the driving speed of hobboing cutter.The utility model considerably increases the abrasion resistance of shield machine roller cutter, decreases the replacing number of times of cutter hub, and then reduces construction cost, increases work efficiency.
Embodiment 2, described wear plate is cylindrical, or the bottom of wear plate be cylindrical, top is cone shape, other structures are with embodiment 1, and this arranges the abrasion strength resistance effectively improving wear plate, thus improve the life-span of abrasion resistance hobboing cutter.
Embodiment 3, axial direction and cutter ring 5 external surface of described wear plate are perpendicular, and other structures are with embodiment 1, and this setting effectively reduces the contact stress that hobboing cutter is subject to when rotary motion, and then improve the application life of abrasion resistance hobboing cutter.
Embodiment 4, the diameter of described wear plate is 4-25mm, axial length is 8-25mm, such as diameter is 4mm, axially long 8mm, or diameter is 25mm, axial long 25mm, again or diameter be 15mm, axially long 16mm, other structures are with embodiment 1, and this setting can meet the requirement of shield machine roller cutter abrasion resistance, thus effectively reduces costs.
Embodiment 5, the height of described wear plate top protrusion cutter ring 5 external surface is less than the half of wear plate axial length, and other structures are with embodiment 1, and this setting can meet cutting effect and the driving speed of hobboing cutter, and effectively reduces cost.
Embodiment 6, described wear plate is no less than 4 along the distributed quantity of cutter ring 5 external surface, and this setting further increases the efficiency of breaking rock of hobboing cutter.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a high-wearing feature shield machine roller cutter, comprise cutter shaft (1), cutter hub (4), end cap (2) and be positioned at the upper cutter ring (5) installed of cutter hub (4), it is characterized in that: described cutter shaft (1) is arranged in cutter hub (4), sandwiched two groups of bearings (7) between cutter shaft (1) and cutter hub (4), two groups of end caps (2) and two groups of metal sealings (3), described bearing (7), end cap (2) and metal sealing (3) are symmetrical arranged along cutter hub (4) lengthwise centers, at the arranged outside cutter ring (5) of cutter hub (4), described cutter ring (5) center line overlaps with cutter hub length degree center line, described cutter ring (5) surface uniform offers some grooves perpendicular to cutter ring (5) external surface, groove is embedded in fixing wear plate, and cutter ring external surface is protruded on wear plate top.
2. a kind of high-wearing feature shield machine roller cutter according to claim 1, it is characterized in that: described wear plate is polycrystalline diamond sheet (8) and/or composite polycrystal-diamond (6), and described composite polycrystal-diamond (6) is made up of the cemented carbide substrate layer and superposed polycrystalline diamond layer being positioned at bottom.
3. a kind of high-wearing feature shield machine roller cutter according to claim 1, is characterized in that: described wear plate is cylindrical, or the bottom of wear plate be cylindrical, top is cone shape.
4. a kind of high-wearing feature shield machine roller cutter according to claim 1, is characterized in that: the axial direction of described wear plate and cutter ring (5) external surface perpendicular.
5. a kind of high-wearing feature shield machine roller cutter according to claim 1, is characterized in that: the diameter of described wear plate is 4-25mm, and axial length is 8-25mm.
6. a kind of high-wearing feature shield machine roller cutter according to claim 1, is characterized in that: the height of described wear plate top protrusion cutter ring (5) external surface is less than the half of wear plate axial length.
7. a kind of high-wearing feature shield machine roller cutter according to claim 1, is characterized in that: described wear plate is no less than 4 along the distributed quantity of cutter ring (5) external surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875522.6U CN205135638U (en) | 2015-11-05 | 2015-11-05 | High wearing feature shield constructs quick -witted hobbing cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875522.6U CN205135638U (en) | 2015-11-05 | 2015-11-05 | High wearing feature shield constructs quick -witted hobbing cutter |
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| Publication Number | Publication Date |
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| CN205135638U true CN205135638U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520875522.6U Active CN205135638U (en) | 2015-11-05 | 2015-11-05 | High wearing feature shield constructs quick -witted hobbing cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605609A (en) * | 2020-12-01 | 2021-04-06 | 中铁工程装备集团有限公司 | Tower type hobbing cutter ring and preparation method thereof |
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2015
- 2015-11-05 CN CN201520875522.6U patent/CN205135638U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605609A (en) * | 2020-12-01 | 2021-04-06 | 中铁工程装备集团有限公司 | Tower type hobbing cutter ring and preparation method thereof |
| CN112605609B (en) * | 2020-12-01 | 2022-03-04 | 中铁工程装备集团有限公司 | Tower type hobbing cutter ring and preparation method thereof |
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