CN110529133A - A kind of TBM disk cutter of cutter ring excircle fluting - Google Patents
A kind of TBM disk cutter of cutter ring excircle fluting Download PDFInfo
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- CN110529133A CN110529133A CN201910949945.0A CN201910949945A CN110529133A CN 110529133 A CN110529133 A CN 110529133A CN 201910949945 A CN201910949945 A CN 201910949945A CN 110529133 A CN110529133 A CN 110529133A
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- ball
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- 239000011435 rock Substances 0.000 claims abstract description 104
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000000994 depressogenic effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 34
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 10
- 125000004122 cyclic group Chemical group 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The present invention discloses a kind of TBM disk cutter of cutter ring excircle fluting, including cutter ring, cutter hub, retaining ring, bearing, rigid mandrel, bearing (ball) cover and sealing ring, cutter ring is fixed on cutter hub by retaining ring, joint bearing in cutter hub, bearing seal is fixed on rigid mandrel by bearing (ball) cover and sealing ring, a kind of TBM disk cutter of cutter ring excircle fluting, uses a kind of structure of novel Hob for cutting rock cutter ring；Cutter hub and bearing, bearing (ball) cover are assemblied on axis, are sealed its internal oil with a sealing ring between cutter hub and bearing (ball) cover, there is a step in cutter hub outer ring, for positioning cutter ring；The present invention can control closely knit nuclear shape, change stress distribution to form lateral crackle, be conducive to the generation and expansion of lateral crackle, reduce broken rock energy consumption, effectively enhance the ability of broken rock, improve efficiency of breaking rock.
Description
Technical field
The present invention relates to set of tunneling construction field of mechanical technique, in particular to a kind of cutter ring excircle fluting
TBM disk cutter.
Background technique
Shield machine (TBM) Quan Mingwei shielding tunnel excavator is that a kind of specialized engineering of tunnel piercing is mechanical, has first
Into, environmental protection, it is efficient the features such as, therefore the engineering tunnels tunneling construction operation such as be widely used in city underground, railway, water conservancy and hydropower
In.
In tunneling process, key effect is TBM disk cutter.It is mounted on cutter head panel, along cutterhead radial direction
It is arranged with different orbital radius.Cutter ring of disc cutter is the key part and easy loss part of disk cutter, in operation process
It is directly in contact with rock, the extruding force for rotating by cutterhead and being generated when promoting, cutter ring of disc cutter intrusion rock simultaneously makes
It is broken.
Existing research shows that tensile stress plays a leading role in rock break-off process；And existing hobboing cutter is main in rock at present
What is generated is compression, and the tensile stress of generation is fewer, thus broken hard rock efficiency is lower.It is therefore necessary to by cutter ring knot
Structure is designed, and is increased the tensile stress in rock, could be improved efficiency of breaking rock.
Summary of the invention
The purpose of the present invention is to provide a kind of TBM disk cutters of cutter ring excircle fluting, can be according to TBM hob
Rock breaking mechanism and working characteristics, the open channels on hobboing cutter cutter ring excircle, change hobboing cutter effect under rock interior compact core and
The distribution of stress field increases lateral tensile stress, is conducive to more perforations crackle lateral between hobboing cutter and sliver peels off, to replace
The existing insufficient cutter ring structure of generation tensile stress.The design structure can be improved especially for the case where high hard rock tunnels
Broken rock and drivage efficiency.The design structure is simple, influences on the cost of charp tool smaller.
The embodiment of the present invention is achieved in that
A kind of structure of novel Hob for cutting rock cutter ring comprising: cutter ring, cutter hub, retaining ring, bearing, rigid mandrel, bearing end
Lid and sealing ring；The excircle of cutter ring is non-burnishing surface, and the outer circumference surface of cutter ring offers depressed geometry inwardly to mention
High hobboing cutter efficiency of breaking rock, depressed geometry include recess, groove or hole, and the outside of cutter hub is in step-like and cutter ring inner circle
Circumferential surface is stuck at step, and cutter ring is stuck on the outside of cutter hub fixed by retaining ring, and joint bearing, bearing (ball) cover and sealing ring are by bearing in cutter hub
Sealing is fixed on rigid mandrel.
In preferred embodiments of the present invention, above-mentioned cutter ring outer circumference surface be regular surfaces, regular surfaces be cylindrical surface or
Arc surface.
In preferred embodiments of the present invention, the groove of above-mentioned cutter ring excircle or the quantity in hole are at least one.
In preferred embodiments of the present invention, above-mentioned rigidity mandrel is provided with the shaft shoulder used for positioning, and the shaft shoulder is the rigid heart
The lateral projections of axis are arranged to be formed, and bearing (ball) cover and rigid mandrel are interference fitted, and fixation is blocked in one end of bearing (ball) cover by the shaft shoulder.
In preferred embodiments of the present invention, there is cavity space between above-mentioned bearing (ball) cover and cutter hub, bearing is placed in chamber
In body space.
In preferred embodiments of the present invention, above-mentioned bearing is tapered roller bearing, and bearing includes bearing outer ring, in bearing
Circle and taper roller, bearing inner race are placed in the outside of bearing (ball) cover, and bearing outer ring is fixed on the inside of cutter hub, and taper roller is placed in axis
It holds between inner ring and bearing outer ring.
In preferred embodiments of the present invention, the slot for placing bearing outer ring, bearing outer ring card are provided on the inside of above-mentioned cutter hub
Enter in slot, the card slot for being caught in retaining ring is provided on the outside of cutter hub.
In preferred embodiments of the present invention, above-mentioned cutter ring and cutter hub are interference fitted, and the side of cutter ring is positioned by step,
It is blocked by retaining ring the other side of cutter ring.
A kind of TBM disk cutter of cutter ring excircle fluting, uses the structure of above-mentioned novel Hob for cutting rock cutter ring.
The beneficial effects of the present invention are:
The present invention is designed by reasonable blade, controls closely knit nuclear shape, by the non-flat entire structure of cutter ring, is changed
Stress distribution and lateral crackle is more readily formed, while reducing closely knit Assessment of Nuclear Volume to reduce broken rock energy consumption, pass through cutter ring and generate two
A contact pressure in close contact area, the two regions interacts, and not only forms the same middle section and deposits
In the compact core of recess, and the tensile stress of compact core two sides is increased, so that lateral crackle is easier to extend；The present invention can
Closely knit nuclear shape is controlled, changes stress distribution, is conducive to the generation and expansion of lateral crackle, reduces broken rock energy consumption, is effectively increased
The strong ability of broken rock, improves efficiency of breaking rock.
In TBM rock break-off process, hobboing cutter forms compact core in the rock mass immediately below it.On the one hand, compact core is to rock
Internal stress distribution, which has, to be significantly affected, and then acts on the germinating and extension of crackle；On the other hand, the formation of compact core is consumed
Energy to account for the specific gravity that hobboing cutter broken rock always consumes energy higher.Therefore, present invention target achieved is: being set by reasonable blade
Meter controls closely knit nuclear shape, changes stress distribution and lateral crackle is more readily formed, while reducing closely knit Assessment of Nuclear Volume to reduce brokenly
Rock energy consumption.
It is learnt by analysis, since there is no contacts for the part slotted among cutter ring when the cutter ring broken rock of center grooved, then
There is no contact pressures, then the stress value immediately below the part is smaller, and there are concave shapes in the part for the compact core of generation, subtract
Small closely knit Assessment of Nuclear Volume, reduces energy consumption.Meanwhile the cutter ring of center grooved is different from double-edged hobbing cutter again: two blades of the latter produce
Raw contact area distance farther out, cannot interact, then each self-forming compact core, not improve to efficiency of breaking rock；And for
The former, the same blade generates two contact pressures in close contact area, the two regions and interacts, not only
It forms the same middle section and there is the compact core of recess, and increase the tensile stress of compact core two sides, so that lateral crackle
More easily extend.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range.
Fig. 1 is the structure chart of the TBM disk cutter of the novel cutter ring excircle fluting of the present invention；
Fig. 2 is enlarged drawing at the A in Fig. 1 of the present invention；
Fig. 3 is the cutter ring perspective view of first embodiment of the invention；
Fig. 4 is the cutter ring sectional view of first embodiment of the invention；
Fig. 5 is the cutter ring sectional view of second embodiment of the invention；
Fig. 6 is the cutter ring sectional view of third embodiment of the invention；
Fig. 7 is the cutter ring sectional view of fourth embodiment of the invention；
Fig. 8 is the cutter ring sectional view of fifth embodiment of the invention；
Fig. 9 is the cutter ring sectional view of sixth embodiment of the invention；
Figure 10 is traditional cutter ring construction drawing；
Figure 11 is cutter ring construction drawing of the invention；
Icon: 1- groove, 2- cutter ring, 3- retaining ring, 4- cutter hub, 5- bearing (ball) cover, 6- sealing ring, 7- tapered roller bearing,
71- bearing outer ring, 72- bearing inner race, 73- taper roller, 8- rigidity mandrel, at the outer rim of A- cutter ring.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
First embodiment
Fig. 1 is please referred to, the present embodiment provides a kind of TBM disk cutters of cutter ring excircle fluting, use novel broken rock
The structure of hobboing cutter cutter ring, the structure include: cutter ring 2, cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring
6, wherein cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring 6 are standard component；Cutter ring 2 passes through retaining ring 3
It is fixed on cutter hub 4, joint bearing 7 in cutter hub 4, bearing 7 is sealed and is fixed on rigid mandrel 8 by bearing (ball) cover 5 and sealing ring 6；Knife
Body 4 and bearing 7, bearing (ball) cover 5 are assemblied on axis, with a sealing ring 6 by its interior oil between cutter hub 4 and bearing (ball) cover 5
Liquid seals, and a step is equipped on the outside of cutter hub 4, and for positioning cutter ring 2, therefore, 4 outside another side of cutter hub is equipped with card slot, for putting
Set retaining ring 32 two sides of cutter ring are all fixed, 2 outer circumference surface of cutter ring can be cylindrical surface, arc surface or other satisfactory rules
Surface, structure improve hobboing cutter efficiency of breaking rock by the way of the open channels 1 on 2 excircle of hobboing cutter cutter ring, and 2 excircle of cutter ring adds
Work has groove 1, and groove 1 can be any shape for meeting processing request and technical requirements, and the groove on 2 excircle of cutter ring
1 is at least one, is particularly suitable for ground consisting of hard rock, realizes that high speed is tunneled, and the effect of groove 1 is that crackle when making broken rock is concentrated to two
Side extension, to improve efficiency of breaking rock.
Referring to figure 2., Fig. 3 and Fig. 4, the generally cyclic structure of cutter ring 2, the inside of cutter ring 2 are the annular inner wall of tubular, knife
The outer middle side part outwardly convex of circle 2, the protrusion are the positions for broken rock, and the convex surfaces of cutter ring 2 are its outer circumference surface, table
Face is cylindrical side, is straight flange in the axial direction of rigid mandrel 8, the excircle of cutter ring 2 is non-burnishing surface, the excircle of cutter ring 2
Inward-facing to offer 1 structure of groove to improve hobboing cutter efficiency of breaking rock, 2 excircle of cutter ring of the embodiment is concaved with a ditch
Slot 1, the rectangular in cross-section of the groove 1, circular cutter ring 2 one weeks in a ring, compared with common unslotted cutter ring 2, center grooved
Cutter ring 2 by load concentration to two sides, and the load of common unslotted cutter ring 2 is then the center that concentrates on, and therefore, uses excircle
When the hobboing cutter that the cutter ring 2 of fluting is assembled into carries out broken rock operation, rock crackle forming, which is easier to extend to two sides, to be extended, when two neighboring
When the crackle that hobboing cutter operation is formed crosses, the carg of formation falls off, and efficiency of breaking rock can be improved.
The generally cyclic structure of cutter hub 4, the inner side and outer side of cutter hub 4 are respectively the inner side and outer side of cyclic structure, cutter hub 4
Outside be stuck at step in step-like and cutter ring 2 inner peripheral surface, cutter ring 2 is stuck on the outside of cutter hub 4 fixed, retaining ring 3 by retaining ring 3
In a ring and internal diameter is just with the mutual clamping in the outside of cutter hub 4, and the one end in 4 outside of cutter hub is provided with the card slot for being caught in retaining ring 3,
In a ring along cutter hub 4 one weeks, the other end in 4 outside of cutter hub is provided with step to the card slot, and cutter ring 2 and cutter hub 4 are interference fitted, cutter ring
2 side is positioned by step, and the other side of cutter ring 2 is blocked by retaining ring 3, and one end of the inner peripheral surface of cutter ring 2 is stuck in step
Place, the other end of the inner peripheral surface of cutter ring 2 are located at the edge of card slot, and retaining ring 3 is caught in the fixed clamping of cutter ring 2, knife in card slot
Joint bearing 7 in body 4, is provided with the slot for placing bearing outer ring 71 on the inside of cutter hub 4, in 71 card entry slot of bearing outer ring, 4 inside of cutter hub
There are two slots for setting altogether, are just mutually matched clamping with bearing outer ring 71.
There is cavity space between bearing (ball) cover 5 and cutter hub 4, it will be internal with sealing ring 6 between cutter hub 4 and bearing (ball) cover 5
The sealing of cavity space oil liquid, bearing 7 is placed in cavity space, and bearing 7 is tapered roller bearing, and bearing 7 includes bearing outer ring
71, bearing inner race 72 and taper roller 73, bearing inner race 72 are placed in the outside of bearing (ball) cover 5, and the outside of bearing (ball) cover 5 is provided with
Groove and being mutually matched with bearing inner race 72 blocks, and bearing outer ring 71 is fixed on 4 inside of cutter hub, and taper roller 73 is placed in bearing
Between circle 72 and bearing outer ring 71, bearing outer ring 71 and bearing inner race 72 are respectively relative to taper roller 73 and can be rotated, bearing end
Lid 5 and sealing ring 6, which seal bearing outer ring 71, bearing inner race 72 and taper roller 73, is fixed on rigid mandrel 8, rigid mandrel 8
It is provided with the shaft shoulder used for positioning, the shaft shoulder is that the lateral projections of rigid mandrel 8 are arranged to be formed, and one end of bearing (ball) cover 5 is stuck in axis
At shoulder, fixation is blocked in one end of bearing (ball) cover 5 by the shaft shoulder, and bearing (ball) cover 5 and rigid mandrel 8 are interference fitted.
Second embodiment
Second embodiment and first embodiment are the difference is that the outer circumference surface of cutter ring 2 is arranged.
Referring to figure 5., the present embodiment provides a kind of TBM disk cutters of cutter ring excircle fluting, use novel broken rock
The structure of hobboing cutter cutter ring, the structure include: cutter ring 2, cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring
6, wherein cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring 6 are standard component；Cutter ring 2 passes through retaining ring 3
It is fixed on cutter hub 4, joint bearing 7 in cutter hub 4, bearing 7 is sealed and is fixed on rigid mandrel 8 by bearing (ball) cover 5 and sealing ring 6；Knife
Body 4 and bearing 7, bearing (ball) cover 5 are assemblied on axis, with a sealing ring 6 by its interior oil between cutter hub 4 and bearing (ball) cover 5
Liquid seals, and a step is equipped on the outside of cutter hub 4, and for positioning cutter ring 2, therefore, 4 outside another side of cutter hub is equipped with card slot, for putting
Set retaining ring 32 two sides of cutter ring are all fixed, 2 outer circumference surface of cutter ring can be cylindrical surface, arc surface or other satisfactory rules
Surface, structure improve hobboing cutter efficiency of breaking rock by the way of the open channels 1 on 2 excircle of hobboing cutter cutter ring, and 2 excircle of cutter ring adds
Work has groove 1, and groove 1 can be any shape for meeting processing request and technical requirements, and the groove on 2 excircle of cutter ring
1 is at least one, is particularly suitable for ground consisting of hard rock, realizes that high speed is tunneled, and the effect of groove 1 is that crackle when making broken rock is concentrated to two
Side extension, to improve efficiency of breaking rock.
The generally cyclic structure of cutter ring 2, the inside of cutter ring 2 are the annular inner wall of tubular, the outer middle side part convex of cutter ring 2
It rises, which is the position for broken rock, and the convex surfaces of cutter ring 2 are its outer circumference surface, and surface is cylindrical surface, in rigidity
The axial direction of mandrel 8 is straight flange, and the excircle of cutter ring 2 is non-burnishing surface, and the outer circumference surface of cutter ring 2 inwardly offers 1 structure of groove
To improve hobboing cutter efficiency of breaking rock, 2 excircle of cutter ring of the present embodiment is concaved with a groove 1, and the section of the groove 1 is in ladder
Shape, in a ring, compared with common unslotted cutter ring 2, the cutter ring 2 of center grooved is by load concentration to two for circular cutter ring 2 one weeks
Side, and the load of common unslotted cutter ring 2 is then the center that concentrates on, therefore, the rolling being assembled into using the cutter ring 2 that excircle is slotted
When knife carries out broken rock operation, rock crackle forming is easier to prolong Shen to two sides extension, when the crackle that two neighboring hobboing cutter operation is formed is handed over
When remittance, the carg of formation falls off, and efficiency of breaking rock can be improved.
3rd embodiment
3rd embodiment and first embodiment are the difference is that the outer circumference surface of cutter ring 2 is arranged.
Fig. 6 is please referred to, the present embodiment provides a kind of TBM disk cutters of cutter ring excircle fluting, use novel broken rock
The structure of hobboing cutter cutter ring, the structure include: cutter ring 2, cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring
6, wherein cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring 6 are standard component；Cutter ring 2 passes through retaining ring 3
It is fixed on cutter hub 4, joint bearing 7 in cutter hub 4, bearing 7 is sealed and is fixed on rigid mandrel 8 by bearing (ball) cover 5 and sealing ring 6；Knife
Body 4 and bearing 7, bearing (ball) cover 5 are assemblied on axis, with a sealing ring 6 by its interior oil between cutter hub 4 and bearing (ball) cover 5
Liquid seals, and a step is equipped on the outside of cutter hub 4, and for positioning cutter ring 2, therefore, 4 outside another side of cutter hub is equipped with card slot, for putting
Set retaining ring 32 two sides of cutter ring are all fixed, 2 outer circumference surface of cutter ring can be cylindrical surface, arc surface or other satisfactory rules
Surface, structure improve hobboing cutter efficiency of breaking rock by the way of the open channels 1 on 2 excircle of hobboing cutter cutter ring, and 2 excircle of cutter ring adds
Work has groove 1, and groove 1 can be any shape for meeting processing request and technical requirements, and the groove on 2 excircle of cutter ring
1 is at least one, is particularly suitable for ground consisting of hard rock, realizes that high speed is tunneled, and the effect of groove 1 is that crackle when making broken rock is concentrated to two
Side extension, to improve efficiency of breaking rock.
The generally cyclic structure of cutter ring 2, the inside of cutter ring 2 are the annular inner wall of tubular, the outer middle side part convex of cutter ring 2
It rises, which is the position for broken rock, and the convex surfaces of cutter ring 2 are its outer circumference surface, and surface is cylindrical surface, in rigidity
The axial direction of mandrel 8 is straight flange, and the excircle of cutter ring 2 is non-burnishing surface, and the outer circumference surface of cutter ring 2 inwardly offers 1 structure of groove
To improve hobboing cutter efficiency of breaking rock, 2 excircle of cutter ring of the present embodiment is concaved with a groove 1, and the section of the groove 1 is in three
Angular, compared with common unslotted cutter ring 2, the cutter ring 2 of center grooved arrives load concentration to circular cutter ring in a ring within 2 one weeks
Two sides, and the load of common unslotted cutter ring 2 is then the center that concentrates on, and therefore, is assembled into using the cutter ring 2 that excircle is slotted
When hobboing cutter carries out broken rock operation, rock crackle forming is easier to prolong Shen to two sides extension, when the crackle that two neighboring hobboing cutter operation is formed
When crossing, the carg of formation falls off, and efficiency of breaking rock can be improved.
Fourth embodiment
Fourth embodiment and first embodiment are the difference is that the outer circumference surface of cutter ring 2 is arranged.
Fig. 7 is please referred to, the present embodiment provides a kind of TBM disk cutters of cutter ring excircle fluting, use novel broken rock
The structure of hobboing cutter cutter ring, the structure include: cutter ring 2, cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring
6, wherein cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring 6 are standard component；Cutter ring 2 passes through retaining ring 3
It is fixed on cutter hub 4, joint bearing 7 in cutter hub 4, bearing 7 is sealed and is fixed on rigid mandrel 8 by bearing (ball) cover 5 and sealing ring 6；Knife
Body 4 and bearing 7, bearing (ball) cover 5 are assemblied on axis, with a sealing ring 6 by its interior oil between cutter hub 4 and bearing (ball) cover 5
Liquid seals, and a step is equipped on the outside of cutter hub 4, and for positioning cutter ring 2, therefore, 4 outside another side of cutter hub is equipped with card slot, for putting
Set retaining ring 32 two sides of cutter ring are all fixed, 2 outer circumference surface of cutter ring can be cylindrical surface, arc surface or other satisfactory rules
Surface, structure improve hobboing cutter efficiency of breaking rock, the processing of 2 excircle of cutter ring by the way of being recessed on 2 excircle of hobboing cutter cutter ring
There is the recessed groove of double cambered surfaces, recessed groove can be any shape for meeting processing request and technical requirements, and 2 excircle of cutter ring
On recessed groove be at least one, be particularly suitable for ground consisting of hard rock, realize that high speed is tunneled, recessed groove effect is splitting when making broken rock
Line is concentrated to be extended to two sides, to improve efficiency of breaking rock.
The generally cyclic structure of cutter ring 2, the inside of cutter ring 2 are the annular inner wall of tubular, the outer middle side part convex of cutter ring 2
It rises, which is the position for broken rock, and the convex surfaces of cutter ring 2 are its outer circumference surface, and surface is double arcwall faces, rigid
Property mandrel 8 axial direction be arc, the excircle of cutter ring 2 is non-burnishing surface, and the depression in centre formula geometry of double arcs is to mention
Double arcwall faces of high hobboing cutter efficiency of breaking rock, 2 excircle of cutter ring of the present embodiment form recessed groove at middle part, and recessed groove is around cutter ring
2 one weeks in a ring；Compared with common unslotted cutter ring 2, the cutter ring 2 by load concentration to two sides, and common unslotted cutter ring 2
Load is then the center that concentrates on, therefore, when carrying out broken rock operation using the hobboing cutter that the cutter ring 2 that excircle is slotted is assembled into, rock
Crackle is easier to prolong Shen to two sides extension, and when the crackle that two neighboring hobboing cutter operation is formed crosses, the carg of formation is de-
It falls, efficiency of breaking rock can be improved.
5th embodiment
5th embodiment and first embodiment are the difference is that the outer circumference surface of cutter ring 2 is arranged.
Fig. 8 is please referred to, the present embodiment provides a kind of TBM disk cutters of cutter ring excircle fluting, use novel broken rock
The structure of hobboing cutter cutter ring, the structure include: cutter ring 2, cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring
6, wherein cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring 6 are standard component；Cutter ring 2 passes through retaining ring 3
It is fixed on cutter hub 4, joint bearing 7 in cutter hub 4, bearing 7 is sealed and is fixed on rigid mandrel 8 by bearing (ball) cover 5 and sealing ring 6；Knife
Body 4 and bearing 7, bearing (ball) cover 5 are assemblied on axis, with a sealing ring 6 by its interior oil between cutter hub 4 and bearing (ball) cover 5
Liquid seals, and a step is equipped on the outside of cutter hub 4, and for positioning cutter ring 2, therefore, 4 outside another side of cutter hub is equipped with card slot, for putting
Set retaining ring 32 two sides of cutter ring are all fixed, 2 outer circumference surface of cutter ring can be cylindrical surface, arc surface or other satisfactory rules
Surface, structure improve hobboing cutter efficiency of breaking rock by the way of the open channels 1 on 2 excircle of hobboing cutter cutter ring, and 2 excircle of cutter ring adds
Work has groove 1, and groove 1 can be any shape for meeting processing request and technical requirements, and the groove on 2 excircle of cutter ring
1 is at least one, is particularly suitable for ground consisting of hard rock, realizes that high speed is tunneled, and the effect of groove 1 is that crackle when making broken rock is concentrated to two
Side extension, to improve efficiency of breaking rock.
The generally cyclic structure of cutter ring 2, the inside of cutter ring 2 are the annular inner wall of tubular, the outer middle side part convex of cutter ring 2
It rises, it is arc in the axial direction of rigid mandrel 8 which, which is the position for broken rock, and the convex surfaces of cutter ring 2 are its outer circumference surface
Shape, the excircle of cutter ring 2 are non-burnishing surface, and the outer circumference surface of cutter ring 2 offers 1 structure of groove inwardly to improve hobboing cutter broken rock effect
Rate, is concaved with a groove 1 in the middle part of the arc surface of 2 excircle of cutter ring of the present embodiment, the rectangular in cross-section of the groove 1,
Compared with common unslotted cutter ring 2, the cutter ring 2 of center grooved can be by load concentration to two in a ring in 2 one weeks for its circular cutter ring
Side, and the load of common unslotted cutter ring 2 is then the center that concentrates on, therefore, the rolling being assembled into using the cutter ring 2 that excircle is slotted
When knife carries out broken rock operation, rock crackle forming is easier to prolong Shen to two sides extension, when the crackle that two neighboring hobboing cutter operation is formed is handed over
When remittance, the carg of formation falls off, and efficiency of breaking rock can be improved.
Sixth embodiment
Sixth embodiment and first embodiment are the difference is that the outer circumference surface of cutter ring 2 is arranged.
Fig. 9 is please referred to, the present embodiment provides a kind of TBM disk cutters of cutter ring excircle fluting, use novel broken rock
The structure of hobboing cutter cutter ring, the structure include: cutter ring 2, cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring
6, wherein cutter hub 4, retaining ring 3, bearing 7, rigid mandrel 8, bearing (ball) cover 5 and sealing ring 6 are standard component；Cutter ring 2 passes through retaining ring 3
It is fixed on cutter hub 4, joint bearing 7 in cutter hub 4, bearing 7 is sealed and is fixed on rigid mandrel 8 by bearing (ball) cover 5 and sealing ring 6；Knife
Body 4 and bearing 7, bearing (ball) cover 5 are assemblied on axis, with a sealing ring 6 by its interior oil between cutter hub 4 and bearing (ball) cover 5
Liquid seals, and a step is equipped on the outside of cutter hub 4, and for positioning cutter ring 2, therefore, 4 outside another side of cutter hub is equipped with card slot, for putting
Set retaining ring 32 two sides of cutter ring are all fixed, 2 outer circumference surface of cutter ring can be cylindrical surface, arc surface or other satisfactory rules
Surface, structure improve hobboing cutter efficiency of breaking rock by the way of the open channels 1 on 2 excircle of hobboing cutter cutter ring, and 2 excircle of cutter ring adds
Work has groove 1, and groove 1 can be any shape for meeting processing request and technical requirements, and the groove on 2 excircle of cutter ring
1 is at least one, is particularly suitable for ground consisting of hard rock, realizes that high speed is tunneled, and the effect of groove 1 is that crackle when making broken rock is concentrated to two
Side extension, to improve efficiency of breaking rock.
The generally cyclic structure of cutter ring 2, the inside of cutter ring 2 are the annular inner wall of tubular, the outer middle side part convex of cutter ring 2
It rises, which is the position for broken rock, and it is straight in the axial direction of rigid mandrel 8 that the convex surfaces of cutter ring 2, which are its outer circumference surface,
Side, the excircle of cutter ring 2 are non-burnishing surface, and the outer circumference surface of cutter ring 2 offers 1 structure of groove inwardly to improve hobboing cutter broken rock effect
Rate, 2 excircle of cutter ring of the present embodiment are concaved with multiple grooves 1, and the rectangular in cross-section of the groove 1 is equipped with 5 rectangles altogether
And be successively spaced, compared with common unslotted cutter ring 2, the cutter ring 2 of center grooved can incite somebody to action circular cutter ring in a ring within 2 one weeks
Load concentration is to multiple lateral directions, and the load of common unslotted cutter ring 2 is then the center that concentrates on, and therefore, uses outer circle
When the hobboing cutter that the cutter ring 2 that week slots is assembled into carries out broken rock operation, rock crackle forming is easier to prolong Shen to two sides extension, when adjacent two
When the crackle that a hobboing cutter operation is formed crosses, the carg of formation falls off, and efficiency of breaking rock can be improved.
Figure 10 and Figure 11 are please referred to, operating condition schematic diagram when being traditional progress broken rock work using unslotted cutter ring 2,
It is operating condition schematic diagram when carrying out broken rock work using the tack cutter ring 2 of fluting, and crackle is extended to two sides at this time, when adjacent rolling
When the crackle that knife generates crosses, carg is formed, it follows that crackle when common tack knife operation forms and inclines in centre
The extension of the depths Xiang Yuxiang, so, compared with operating condition when common tack knife operation, the hobboing cutter of 2 open channels 1 of cutter ring can be faster
The crackle for generating adjacent hobboing cutter crosses, so that carg be made to be formed and be fallen off.
Particularly, the groove 1 on hobboing cutter cutter ring 2 is not limited only to the shape being previously mentioned among the above, and 2 excircle of cutter ring does not connect
It is continuous, along 2 excircle of cutter ring have groove 1, hole or other shapes of depressed geometry and other any meet the above institute
The cutter ring 2 for the technical requirements mentioned is all in the scope of the present invention.
In conclusion present example is designed by reasonable blade, closely knit nuclear shape is controlled, passes through the non-smooth of cutter ring
The structure in face changes stress distribution and lateral crackle is more readily formed, while reducing closely knit Assessment of Nuclear Volume to reduce broken rock energy consumption, leads to
It crosses contact pressure of the cutter ring generation two in close contact area, the two regions to interact, not only be formed same
There is the compact core of recess in a middle section, and increase the tensile stress of compact core two sides, so that lateral crackle is easier to expand
Exhibition；The present invention can control closely knit nuclear shape, change stress distribution to form lateral crackle, be conducive to lateral crackle generation and
Extension, effectively enhances the ability of broken rock, improves efficiency of breaking rock.
Present specification describes the example of the embodiment of the present invention, it is not meant to that these embodiments illustrate and describe this
All possible forms of invention.Those of ordinary skill in the art will understand that the embodiments described herein is to help
Reader understands the principle of the present invention, it should be understood that protection scope of the present invention is not limited to such special statement and implementation
Example.Those skilled in the art can according to the present invention disclosed the technical disclosures make it is various do not depart from it is of the invention real
Various other specific variations and combinations of matter, these variations and combinations are still within the scope of the present invention.
Claims (9)
1. a kind of structure of novel Hob for cutting rock cutter ring characterized by comprising cutter ring, cutter hub, retaining ring, bearing, the rigid heart
Axis, bearing (ball) cover and sealing ring；The excircle of the cutter ring is non-burnishing surface, and the outer circumference surface of the cutter ring inwardly offers recessed
Formula geometry is fallen into improve hobboing cutter efficiency of breaking rock, the depressed geometry includes recess, groove or hole, the cutter hub
Outside is stuck at step in step-like and cutter ring inner peripheral surface, and cutter ring is stuck in fixed on the outside of cutter hub, the knife by the retaining ring
Bearing seal is fixed on rigid mandrel by internal joint bearing, the bearing (ball) cover and sealing ring.
2. a kind of structure of novel Hob for cutting rock cutter ring according to claim 1, which is characterized in that the cutter ring excircle
Face is regular surfaces, and the regular surfaces are cylindrical surface or arc surface.
3. a kind of structure of novel Hob for cutting rock cutter ring according to claim 2, which is characterized in that the cutter ring excircle
Recess, groove or the quantity in hole be at least one.
4. a kind of structure of novel Hob for cutting rock cutter ring according to claim 3, which is characterized in that the rigidity mandrel is set
It is equipped with the shaft shoulder used for positioning, the shaft shoulder is that the lateral projections of rigid mandrel are arranged to be formed, the bearing (ball) cover and the rigid heart
Fixation is blocked in one end of bearing (ball) cover by axis interference fit, the shaft shoulder.
5. a kind of structure of novel Hob for cutting rock cutter ring according to claim 3, which is characterized in that the bearing (ball) cover with
There is cavity space, the bearing is placed in cavity space between cutter hub.
6. a kind of structure of novel Hob for cutting rock cutter ring according to claim 3, which is characterized in that the bearing is circular cone
Roller bearing, the bearing include bearing outer ring, bearing inner race and taper roller, and the bearing inner race is placed in the outer of bearing (ball) cover
Side, the bearing outer ring are fixed on the inside of cutter hub, and the taper roller is placed between bearing inner race and bearing outer ring.
7. a kind of structure of novel Hob for cutting rock cutter ring according to claim 3, which is characterized in that set on the inside of the cutter hub
It is equipped with the slot for placing bearing outer ring, in the bearing outer ring card entry slot, the card for being caught in retaining ring is provided on the outside of the cutter hub
Slot.
8. a kind of structure of novel Hob for cutting rock cutter ring according to claim 3, which is characterized in that the cutter ring and cutter hub
The side of interference fit, the cutter ring is positioned by step, and the other side of the cutter ring is blocked by retaining ring.
9. a kind of TBM disk cutter of cutter ring excircle fluting, which is characterized in that any described new using claim 1-8
The structure of type Hob for cutting rock cutter ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910949945.0A CN110529133A (en) | 2019-10-08 | 2019-10-08 | A kind of TBM disk cutter of cutter ring excircle fluting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910949945.0A CN110529133A (en) | 2019-10-08 | 2019-10-08 | A kind of TBM disk cutter of cutter ring excircle fluting |
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| CN110529133A true CN110529133A (en) | 2019-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910949945.0A Pending CN110529133A (en) | 2019-10-08 | 2019-10-08 | A kind of TBM disk cutter of cutter ring excircle fluting |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925310A (en) * | 2019-12-20 | 2020-03-27 | 中铁工程装备集团有限公司 | TBM thoughtlessly moves base bearing structure |
| CN112730133A (en) * | 2020-12-18 | 2021-04-30 | 湘潭大学 | Rock breaking cutter material-compact nuclear substance pair abrasion test device |
| CN112730134A (en) * | 2020-12-18 | 2021-04-30 | 湘潭大学 | Rock breaking cutter material-compact core substance pair-abrasion test method |
| CN113605909A (en) * | 2021-07-30 | 2021-11-05 | 西南交通大学 | Novel TBM hobbing cutter ring |
| CN114294002A (en) * | 2021-12-28 | 2022-04-08 | 株洲硬质合金集团有限公司 | Hob cutter ring with transition wear-resistant layer and production process thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1192430A (en) * | 1967-02-25 | 1970-05-20 | Ferd Klingelnberg Sohne G M B | A Two-Part Hob |
| US5234064A (en) * | 1992-03-09 | 1993-08-10 | The Robbins Company | Roller cutter assembly having adjustable ring cutter spacing |
| US5429201A (en) * | 1994-01-07 | 1995-07-04 | Dresser Industries, Inc. | Drill bit with improved rolling cutter tooth pattern |
| US6367569B1 (en) * | 2000-06-09 | 2002-04-09 | Baker Hughes Incorporated | Replaceable multiple TCI kerf ring |
| CN102587927A (en) * | 2012-03-14 | 2012-07-18 | 中交天和机械设备制造有限公司 | Multi-edge flange-type hob |
| RU2457085C1 (en) * | 2011-04-11 | 2012-07-27 | Федеральное государственное образовательное учреждение высшего профессионального образования "Государственный университет - учебно-научно-производственный комплекс" (ФГОУ ВПО "Госуниверситет - УНПК") | Combined composite hardening hob |
| CN104265320A (en) * | 2014-10-16 | 2015-01-07 | 山东天工岩土工程设备有限公司 | Core bag structure hobbing cutter, and use method as well as application thereof |
| CN204140083U (en) * | 2014-10-16 | 2015-02-04 | 山东天工岩土工程设备有限公司 | A kind of core pack arrangement hobboing cutter |
| CN205297588U (en) * | 2015-12-28 | 2016-06-08 | 中铁工程装备集团有限公司 | Shield constructs central singleblade hobbing cutter of machine knife dish |
| CN206309396U (en) * | 2016-12-10 | 2017-07-07 | 湖南天鹰钻机制造有限公司 | A kind of side valve type pressure equaliser |
| CN108708734A (en) * | 2018-04-13 | 2018-10-26 | 天津立林钻头有限公司 | Heavy TBM steel bodies hobboing cutter and its installation method |
| CN208267853U (en) * | 2018-05-27 | 2018-12-21 | 中铁工程装备集团隧道设备制造有限公司 | A kind of three sword shield hobboing cutter of integral type |
| CN210564538U (en) * | 2019-10-08 | 2020-05-19 | 西南交通大学 | TBM disc cutter with grooved cutter ring outer circumference |
-
2019
- 2019-10-08 CN CN201910949945.0A patent/CN110529133A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1192430A (en) * | 1967-02-25 | 1970-05-20 | Ferd Klingelnberg Sohne G M B | A Two-Part Hob |
| US5234064A (en) * | 1992-03-09 | 1993-08-10 | The Robbins Company | Roller cutter assembly having adjustable ring cutter spacing |
| US5429201A (en) * | 1994-01-07 | 1995-07-04 | Dresser Industries, Inc. | Drill bit with improved rolling cutter tooth pattern |
| US6367569B1 (en) * | 2000-06-09 | 2002-04-09 | Baker Hughes Incorporated | Replaceable multiple TCI kerf ring |
| RU2457085C1 (en) * | 2011-04-11 | 2012-07-27 | Федеральное государственное образовательное учреждение высшего профессионального образования "Государственный университет - учебно-научно-производственный комплекс" (ФГОУ ВПО "Госуниверситет - УНПК") | Combined composite hardening hob |
| CN102587927A (en) * | 2012-03-14 | 2012-07-18 | 中交天和机械设备制造有限公司 | Multi-edge flange-type hob |
| CN104265320A (en) * | 2014-10-16 | 2015-01-07 | 山东天工岩土工程设备有限公司 | Core bag structure hobbing cutter, and use method as well as application thereof |
| CN204140083U (en) * | 2014-10-16 | 2015-02-04 | 山东天工岩土工程设备有限公司 | A kind of core pack arrangement hobboing cutter |
| CN205297588U (en) * | 2015-12-28 | 2016-06-08 | 中铁工程装备集团有限公司 | Shield constructs central singleblade hobbing cutter of machine knife dish |
| CN206309396U (en) * | 2016-12-10 | 2017-07-07 | 湖南天鹰钻机制造有限公司 | A kind of side valve type pressure equaliser |
| CN108708734A (en) * | 2018-04-13 | 2018-10-26 | 天津立林钻头有限公司 | Heavy TBM steel bodies hobboing cutter and its installation method |
| CN208267853U (en) * | 2018-05-27 | 2018-12-21 | 中铁工程装备集团隧道设备制造有限公司 | A kind of three sword shield hobboing cutter of integral type |
| CN210564538U (en) * | 2019-10-08 | 2020-05-19 | 西南交通大学 | TBM disc cutter with grooved cutter ring outer circumference |
Non-Patent Citations (4)
| Title |
|---|
| 李建斌等: "盾构掘进机刀盘研制实例", 隧道建设, no. 6, 20 December 2005 (2005-12-20), pages 53 - 56 * |
| 杜彦良等: "全断面岩石隧道掘进机— TBM维护保养与监测诊断", vol. 1, 31 January 2013, 武汉：华中科技大学出版社, pages: 116 - 117 * |
| 温晓妮: "盾构机刀具中滚刀的设计及加工工艺", 煤矿机械, vol. 34, no. 11, 15 November 2013 (2013-11-15), pages 127 - 128 * |
| 胡建国等: "机械工程图学", vol. 1, 31 August 2004, 武汉：武汉大学出版社, pages: 211 - 212 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925310A (en) * | 2019-12-20 | 2020-03-27 | 中铁工程装备集团有限公司 | TBM thoughtlessly moves base bearing structure |
| CN110925310B (en) * | 2019-12-20 | 2021-07-23 | 中铁工程装备集团有限公司 | TBM thoughtlessly moves base bearing structure |
| CN112730133A (en) * | 2020-12-18 | 2021-04-30 | 湘潭大学 | Rock breaking cutter material-compact nuclear substance pair abrasion test device |
| CN112730134A (en) * | 2020-12-18 | 2021-04-30 | 湘潭大学 | Rock breaking cutter material-compact core substance pair-abrasion test method |
| CN112730133B (en) * | 2020-12-18 | 2023-03-21 | 湘潭大学 | Rock breaking cutter material-compact nuclear substance pair abrasion test device |
| CN112730134B (en) * | 2020-12-18 | 2023-10-13 | 中铁山河工程装备股份有限公司 | Rock breaking cutter material-compact core material counter grinding test method |
| CN113605909A (en) * | 2021-07-30 | 2021-11-05 | 西南交通大学 | Novel TBM hobbing cutter ring |
| CN114294002A (en) * | 2021-12-28 | 2022-04-08 | 株洲硬质合金集团有限公司 | Hob cutter ring with transition wear-resistant layer and production process thereof |
| CN114294002B (en) * | 2021-12-28 | 2022-12-13 | 株洲硬质合金集团有限公司 | Hob cutter ring with transition wear-resistant layer and production process thereof |
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