CN107060754A - Bore pick and its cutterhead in one kind top - Google Patents
Bore pick and its cutterhead in one kind top Download PDFInfo
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- CN107060754A CN107060754A CN201710232015.4A CN201710232015A CN107060754A CN 107060754 A CN107060754 A CN 107060754A CN 201710232015 A CN201710232015 A CN 201710232015A CN 107060754 A CN107060754 A CN 107060754A
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- pick
- pedestal
- hole
- cutterhead
- bored
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- 238000005520 cutting process Methods 0.000 claims abstract description 52
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000011159 matrix material Substances 0.000 claims abstract description 29
- 239000000428 dust Substances 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 15
- 238000005299 abrasion Methods 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 5
- 210000001138 tear Anatomy 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 238000005553 drilling Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 241001270131 Agaricus moelleri Species 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- 201000011180 Dental Pulp Calcification Diseases 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000788 chromium alloy Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
- E21C35/191—Means for fixing picks or holders for fixing holders
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
It is plane to be bored the invention discloses one kind top at the top of pick, including pedestal, multiple cutting heads for being arranged at the top of pedestal, pedestal, and the cutting head is arranged in pedestal top planes along single helix.A kind of cutterhead is also provided, including matrix, the pick described matrix top center helically arranged around matrix are provided with above-mentioned top and bore pick.The present invention bores on top the design of pick, effectively alleviates traditional cutterhead in cut hard rock, the abrasion of top pick and toothholder, when particularly having prevented cutterhead cut hard rock, and top toothholder is than phenomenon that top pick first weares and teares.And possess easily disassembly and assembly structure, in order to be changed in time after wearing and tearing.
Description
Technical field
The invention belongs to tunnel machine equipment, and in particular to bore pick and its cutterhead in one kind top.
Background technology
The cutterhead of existing colliery and tunnel development machine, the generally type such as conical, truncated cone-shaped or frustum combination.Cut
Cut on head according to strict result of calculation and computer three-dimensional simulation, be dispersed with the toothholder equipped with pick, toothholder is welded on cutterhead
On matrix.The water channel in water hole and nozzle, water hole connection cutterhead matrix is carried on some toothholders, water channel passes through a series of sealings
And the water system of pipeline formation leads to watering, for providing the spray water for depositing dust and cooling for cutterhead.Its used section
Tooth is pick-like bit or flat pick with single hard alloy crown.
Common pick arrangement is along cutterhead matrix Spiral distribution, according to certain axial distance, angle of circumference and different appearances
State（Including cutting angle, corner, from drift angle）Distribution tens is pick.Its quantity press cutterhead matrix size and its institute it is right
Answer the different and different of tunneling machine cutting power, the specific hardness in working face rock stratum and joint distribution.
Existing cutterhead is in the work of cut hard rock, the problem of all there is abrasion, and is distributed in cutterhead diverse location
Pick and the degree of wear that is subject to of toothholder it is different.
It is typically distributed across cut tail end（Larger diameter end）Pick and its toothholder, because it is almost not involved in cutterhead initial stage
Drilling action, and the residing radius of gyration is big, and hilted broadsword clipping force is small, so the abrasion suffered by it is minimum.With
The pick arranged is apart from the increasing of tail end distance, and the workload that pick can be participated in also is stepped up, the rotation where pick
Turn radius to be gradually reduced, the hilted broadsword clipping force of pick gradually increases, and the abrasion suffered by single pick is also incrementally increased.
No matter cut profile is big flat-top, small flat-top or top dome at the top of cutterhead, it is impossible to as cut tail end
Pick, which is arranged, equally plants the pick of enough quantity.The center of each type cutterhead top is additionally provided with the prior art
Pick, pick quantity is generally 2 to 3, no more than 4.In the pick of so narrow and small place arrangement, no matter its posture
How to adjust, all can creep into cut initial stage in cutterhead and the later stage is swung in cutting course, directly by the part exposure of toothholder
Outside, toothholder can be first worn.
Although the abrasion of pick is inevitable in the cutting course of cutterhead, it is desirable that the abrasion of pick is abided by
Follow following rule：Pick crown（Hardmetal materials）First wear and tear, followed by the top of pick denticle, it not may wear to as far as possible
The pick of abrasion is changed when toothholder.
But in reality, the pick at the top of cutterhead, anyway adjustment position, its toothholder can some exposure
In wear range, worn and torn simultaneously by rock stratum prior to crown or with crown.
And when pick wears away not replacing in time at the top of cutterhead, pick and toothholder at the top of cutterhead also will
Accelerated wear test.Moreover, this abrasion is different from the abrasion under general operating mode, because after top pick is lacked, close to top
Toothholder will directly be exposed so that the pick toothholder close to top is worn prior to pick crown, accelerates cutterhead
Damage.
In order to solve this problem, toothholder and pick production company both domestic and external have developed a series of special type pick and tooth
Seat.Reinforcing pick is generally divided into reinforcing the class of toothholder two.Reinforce pick, all kinds of areas easy to wear around where pick crown
Built-up welding high-chromium alloy cast-iron and other high-abrasive materials, form a series of reinforcing picks.Toothholder is reinforced, it is at the top of toothholder and most easy
Abrading section built-up welding high-chromium alloy cast-iron and all kinds of high-abrasive materials form a series of reinforcement type toothholders.Inlayed also at toothholder rapid wear
It is embedding（Prebored hole soldering）The small hard alloy cylinder of disperse that several millimeter of diameter substitutes resurfacing welding material.But these measures are present
Following defect：
First, resurfacing welding material, because its must using bead-welding technology heat coating, and the solderability of material is increase with hardness and
Reduction, which limits the upper limit of resurfacing welding material hardness, make it can not be with the hard alloy using powder metallurgical technique manufacture
Hardness compare.So the hardness of resurfacing welding material, in the good rock of confrontation coal petrography, soft limestone, kukersite soil, joints development
During the geology such as layer, with certain abrasion resistant effect.Once hard rock is run into cutting course, and agensis completely, also with one
Surely the hard rock of engraving property, resurfacing welding material will wear away within a few minutes.
Secondly, the little particle hard alloy of dispersivity, due to its small volume, limit can soldering surface surface area, make
Its soldering strength can not possibly reach very high.In confrontation has and can carve the engineering of hard rock, closed with dispersivity little particle hard
The toothholder of gold also will not have certain intensity and wearability as the pick group normally arranged.
In summary, the treatment measures of prior art are difficult that solution cutterhead front end is different with the tail end degree of wear, with
And the problem of the easy Fast Wearing in front end.
Chinese patent 201220486586.3 discloses a kind of new cutterhead of replaceable top cut sword, it is adaptable in
The driving of the underworkings of the hard place matter such as hard formation above coal field geology, colliery, railway and constructing tunnel；It is mainly characterized by one
The new cutterhead of replaceable top cut sword is planted, mainly there is the body of the cutting head, pick, toothholder and replaceable top cut sword group
Into, it is characterized in that be configured with the cut sword beneficial to development machine jacking in the body of the cutting head conical top replace former position pick and
Toothholder, wherein cut sword is also referred to as center cutter.The height of the center cutter of the program has exceeded the height of pick around it, after drilling
Swing in cutting process, center cutter can be born larger moment of flexure and be broken by side force always.
The content of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of top that is slow, changing convenient disassembly of wearing and tearing is bored pick and its cut
Cut head.
The technical scheme of the present invention that solves the problems, such as is：One kind top bore pick, including pedestal, be arranged at it is multiple at the top of pedestal
It is plane at the top of cutting head, pedestal, the cutting head is arranged in pedestal top planes along single helix.
The cutting head for being designed to plant enough quantity on pedestal of such scheme, because pedestal area is relatively conventional
Scheme is bigger, is conveniently adjusted the attitude angle of arranged cutting head so that be that cutting head is entered all the time in drilling cutting course
Row work, it is to avoid pedestal vertex abrasion.
Simultaneously using single helix arrangement, cutting efficiency is higher, due to being small working face, can ignore Hypothesis of Single Curve Build Up and shake
Dynamic big defect.
Further, it is that deflector chute is provided with the top of disk, pedestal at the top of the pedestal, deflector chute is evenly distributed interval
Provided with multiple, the region that deflector chute is not provided with the top of pedestal forms uniform boss, and the cutting head is arranged on boss, and sets
In the cutting head on same boss on the same line.
Just because of employing the principle of single helix arrangement, design curve is simple, is more beneficial for guide in the confined space
The design of groove, and discharge is easier.
It is preferred that, the guide trench bottom is inclined inclined-plane to the periphery, and deflector chute is uniformly distributed along the circumference provided with six, pedestal
Top is separated out six uniform boss.
In a kind of specific scheme, the cutting head is made of hard alloy, and cutting head, which is fixed, to be welded at the top of pedestal.
In another specific scheme, it is provided with counterbore, the cutting head insertion counterbore and is welded and fixed, institute at the top of pedestal
Cutting head is stated to be made of hard alloy.
Meanwhile, the present invention also provides a kind of cutterhead, including matrix, the pick for helically rising around matrix arrangement, institute
The top brill pick that baseline top center is provided with such scheme is stated, the height of the cutting head of pick is bored no more than around it in the top
Pick height.
Development machine is operationally, first to carry out axial drilling, then carries out swing cutting.When around, pick cuts rock
After cutting, the remaining projection of meeting in the middle of rock, pick is bored on top to be used to cut this boss.Completely after drilling, foot of hole
Or a projection can be left, cutting is at this moment swung, pick is bored on top will be by side force, but this is non-by the time of side force
It is often of short duration, bore pick when top and finish this raised drilling, would not be again by side force in swing working angles afterwards.
Specifically, the pedestal is back taper, its side wall is provided with ladder platform, and seat body sidewall includes holding in the mouth successively from top to bottom
The cancave cambered surface that connects, First terrace, second step face；
Described matrix top center is provided with is provided with screw thread with pedestal sidewall shape identical pilot hole, the second step face,
And thread rotary orientation is consistent with the rotation direction of helix where pick, pedestal is threadedly coupled by second step face with pilot hole.
Thread rotary orientation is consistent with the rotation direction of helix where pick, can prevent pick thread looseness in rotation cut（Cause
Rotation direction is consistent, and when rotating, it is consistent that moment of resistance direction suffered by denticle screws direction with its own）.
Further, coordinate between the First terrace and pilot hole for gap, to ensure that pedestal can be born radially
Power；The fit clearance of First terrace and pilot hole be less than second step face on screw thread fit clearance so that at screw thread only by
To axial force, not by radial load or moment of flexure.
During cutterhead rotary work, axial force and radial load can be born simultaneously, acted with the axial drilling for adapting to cutterhead
And horizontal swing cutting action.
Further, the cavity for being used for installing drive device is provided with described matrix；
Dismounting hole is provided with from top to bottom in pedestal top center, dismounting hole is through hole, the correspondence dismounting hole axle line position in matrix
The through hole connected with the cavity in matrix is provided with, and the through hole is connected with dismounting hole；
The top for dismounting hole is provided with dust plug, and the lower end of through hole is provided with dust plug.
In such scheme, dismounting hole be designed to through hole can it is pre- it is anti-wear after because endoporus effective depth is not enough and influence to fill
Unload.Dust plug prevents pollutant from entering in dismounting hole in mild wear.Through hole is used as cleaning eye, to prevent in the work of dismounting hole
When being blocked, and tamper can not be cleaned out in dust plug direction, tamper is cleared up from this through hole.It is dust-proof in through hole
Plug prevents tamper from falling at work in cutterhead internal cavity.
Further, described matrix is split type, and it includes the base body for being located at base head section and being detachably connected with base head section
Bore pick and be installed on base head section top center in section, the top.
The maintenance that split-type structural is easy to top to bore pick is changed, and also allows for cutterhead base head section pick easy to wear and toothholder
Maintenance and replacing.
The present invention remarkable result be：
1. the design of pick is bored on top, traditional cutterhead is effectively alleviated in cut hard rock, and the abrasion of top pick and toothholder is special
It is not that top toothholder is than phenomenon that top pick first weares and teares when having prevented cutterhead cut hard rock.
2. possess easily disassembly and assembly structure, in order to be changed in time after wearing and tearing.When the cutting head serious wear of pick is bored on top
When, integrally it can change in time.Repair welding toothholder after being damaged compared to toothholder at the top of old-fashioned cutterhead, used in present design
Time and cost are lower.
3. pick total height is bored no more than surrounding pick height in top, it is to avoid top turns into when boring pick work bears side force
Main body, service life is long.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is that pick stereogram is bored on the top of embodiment 1.
Fig. 2 is that pick top view is bored on the top of embodiment 1.
Fig. 3 is A-A views in Fig. 2.
Fig. 4 is the cutterhead stereogram of embodiment 1.
Fig. 5 is the cutterhead sectional view of embodiment 1.
Fig. 6 is that pick stereogram is bored on the top of embodiment 2.
Fig. 7 is that pick sectional view is bored on the top of embodiment 2.
Fig. 8 is that pick stereogram is bored on the top of embodiment 3.
Fig. 9 is that pick top view is bored on the top of embodiment 3.
In figure：1- pedestals, 2- matrixes, 3- cutting heads, 4,20- dust plugs, 5- deflector chutes, 6- boss, 7- cancave cambered surfaces, 9-
One step surface, 10- importings angle, 12- dismounting hole, 13- second steps face, 14- helixes, 15- positioning ream flat hole, 16- picks,
21- base head sections, 22- base figures.
Embodiment
Embodiment 1
As shown in Fig. 1~5, pick is bored on one kind top, including pedestal 1, is arranged at multiple cutting heads 3 at the top of pedestal 1, is arranged at seat
The deflector chute 5 at the top of body 1.The top of pedestal 1 is disk, and cutting head 3 is in the top planes of pedestal 1 along single flat spin
Line 14 is arranged.
Deflector chute 5, which is evenly distributed, to be interval with multiple, and the region that the top of pedestal 1 is not provided with deflector chute 5 forms uniform convex
Platform 6.The cutting head 3 is arranged on boss 6, and the cutting head 3 being arranged on same boss 6 is on the same line.
The bottom of deflector chute 5 is inclined inclined-plane to the periphery, and deflector chute 5 is uniformly distributed along the circumference provided with six, the top of pedestal 1
It is separated out six uniform boss 6.
The cutting head 3 is made of hard alloy, and cutting head 3 is fixedly welded on the top of pedestal 1 using bolt welding machine.Cause
Need to position cutting head 3 before welding, so being previously provided with positioning ream flat hole 15 on boss 6.Position ream flat hole 15 straight
Refractory material protective case major diameter fit when footpath is with welding, protective case internal diameter and the major diameter fit of cutting head 3.
The present embodiment also provides a kind of cutterhead, including matrix 2, the pick 16 for helically rising around matrix 2 arrangement.Institute
State the cavity for being provided with matrix 2 and being used for installing drive device.Described matrix 2 to be split type, it include positioned at base head section 21 and with
The base figure 22 that base head section 21 is detachably connected.The top center of base head section 21 is provided with above-mentioned top and bores pick, and the top is bored
The height of the cutting head 3 of pick is no more than the height of pick around it 16.
The pedestal 1 is back taper, and its side wall is provided with ladder platform, and the side wall of pedestal 1 includes what is be connected successively from top to bottom
Cancave cambered surface 7, First terrace 9, second step face 13.The cancave cambered surface 7 and First terrace 9, First terrace 9 and second
Round-corner transition is used at linking turning point between terrace 13, it is to avoid stress concentration.First terrace 9 and second step face 13 it
Between turnover high spot provided with inclined-plane import angle 10, to facilitate smooth assembling.
The top center of described matrix 2 be provided with the sidewall shape identical pilot hole of pedestal 1, set on the second step face 13
There is screw thread, and thread rotary orientation is consistent with the rotation direction of the place helix of pick 16.Pedestal 1 passes through second step face 13 and pilot hole spiral shell
Line is connected.
Coordinate between the First terrace 9 and pilot hole for gap, the fit clearance of First terrace 9 and pilot hole is small
In the fit clearance of screw thread on second step face 13.
Dismounting hole 12 is provided with from top to bottom in the top center of pedestal 1, and dismounting hole 12 is through hole.The correspondence dismounting in matrix 2
The axial location of hole 12 is provided with the through hole connected with the cavity in matrix 2, and the through hole is connected with dismounting hole 12.Dismount hole 12
Top be provided with dust plug 4, the lower end of through hole is provided with dust plug 20.
Embodiment 2
As shown in figs. 6-7, embodiment 1 is repeated, except that：Carbide cutting first 3 is changed to counterbore soldering.Pushed up in pedestal 1
Portion is provided with counterbore, the insertion of cutting head 3 counterbore and is welded and fixed.
Embodiment 3
As shown in Fig. 8~9, embodiment 1 is repeated, except that：The top of pedestal 1 is not provided with deflector chute 5, only along single spiral
The cutting head 3 that line 14 is arranged.This kind of scheme is particularly suitable for the superhard rock operating modes of more than 80MPa, because its cut formation hardness is bigger,
The landwaste that cut gets off is more in small, broken bits, so being not provided with deflector chute 5, and utilizes the gap guide between cutting head 3, so saves
The space come is used to arrange more cutting heads 3.
The scheme of above-described embodiment 1 and embodiment 2 is more suitable for 60-80MPa hard rock operating modes, and the softer material in part can be by leading
Hopper 5 is discharged.
Claims (10)
1. pick is bored on one kind top, it is characterised in that：Including pedestal（1）, be arranged at pedestal（1）Multiple cutting heads at top（3）, seat
Body（1）Top is plane, the cutting head（3）In pedestal（1）Along single helix in top planes（14）Arrangement.
2. pick is bored on top according to claim 1, it is characterised in that：The pedestal（1）Top is disk, pedestal（1）
Top is provided with deflector chute（5）, deflector chute（5）It is evenly distributed and is interval with multiple, pedestal（1）Top is not provided with deflector chute（5）
Region form uniform boss（6）, the cutting head（3）It is arranged at boss（6）On, and it is arranged at same boss（6）On cut
Cut head（3）On the same line.
3. pick is bored on top according to claim 2, it is characterised in that：The deflector chute（5）Bottom is inclined to the periphery
Inclined-plane, deflector chute（5）It is uniformly distributed along the circumference provided with six, pedestal（1）Top is separated out six uniform boss（6）.
4. pick is bored on the top according to any one of claims 1 to 3, it is characterised in that：The cutting head（3）Closed using hard
Gold is made, cutting head（3）Fixation is welded in pedestal（1）Top.
5. pick is bored on the top according to any one of claims 1 to 3, it is characterised in that：Pedestal（1）Top is provided with counterbore, institute
State cutting head（3）Embedded counterbore is interior and is welded and fixed, the cutting head（3）It is made of hard alloy.
6. a kind of cutterhead, including matrix（2）, around matrix（2）Helically rise the pick of arrangement（16）, it is characterised in that：
Described matrix（2）Pick is bored on the top that top center is provided with described in any one of the claims 1~5, and pick is bored on the top
Cutting head（3）Height no more than pick around it（16）Highly.
7. cutterhead according to claim 6, it is characterised in that：The pedestal（1）For back taper, its side wall is provided with rank
Halfpace, pedestal（1）Side wall includes the cancave cambered surface being connected successively from top to bottom（7）, First terrace（9）, second step face（13）；
Described matrix（2）Top center is provided with and pedestal（1）Sidewall shape identical pilot hole, the second step face（13）On
Provided with screw thread, and thread rotary orientation and pick（16）The rotation direction of place helix is consistent, pedestal（1）Pass through second step face（13）With
Pilot hole is threadedly coupled.
8. cutterhead according to claim 7, it is characterised in that：The First terrace（9）Between between pilot hole being
Gap coordinates, First terrace（9）It is less than second step face with the fit clearance of pilot hole（13）The fit clearance of upper screw thread.
9. cutterhead according to claim 7, it is characterised in that：Described matrix（2）Interior be provided with is used to install drive device
Cavity；
In pedestal（1）Top center is provided with dismounting hole from top to bottom（12）, dismount hole（12）For through hole, in matrix（2）Interior correspondence
Dismount hole（12）Axial location is provided with and matrix（2）The through hole of interior cavity connection, and the through hole and dismounting hole（12）Even
It is logical；
Dismount hole（12）Top be provided with dust plug（4）, the lower end of through hole is provided with dust plug（20）.
10. cutterhead according to claim 6, it is characterised in that：Described matrix（2）To be split type, it includes being located at base
Head section（21）With with base head section（21）The base figure being detachably connected（22）, the top bores pick and is installed on base head section（21）Top
Center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232015.4A CN107060754B (en) | 2017-04-11 | 2017-04-11 | A kind of top bore pick and its cutterhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232015.4A CN107060754B (en) | 2017-04-11 | 2017-04-11 | A kind of top bore pick and its cutterhead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107060754A true CN107060754A (en) | 2017-08-18 |
| CN107060754B CN107060754B (en) | 2018-12-14 |
Family
ID=59602056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710232015.4A Active CN107060754B (en) | 2017-04-11 | 2017-04-11 | A kind of top bore pick and its cutterhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107060754B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916931A (en) * | 2017-12-07 | 2018-04-17 | 徐州徐工基础工程机械有限公司 | A kind of cutting head of roadheader and development machine for hard rock operating mode |
| CN108104809A (en) * | 2017-12-11 | 2018-06-01 | 三重型装备有限公司 | The body of the cutting head, cutterhead and development machine |
| CN113153164A (en) * | 2021-04-20 | 2021-07-23 | 金沙县仁德钻探工具有限公司 | Four-wing flat-top eight-tooth drill bit |
| CN116335697A (en) * | 2023-03-06 | 2023-06-27 | 无锡华瀚能源装备科技有限公司 | Cutting head for self-planning cutting path heading machine |
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| CN101482016A (en) * | 2009-01-19 | 2009-07-15 | 湖南飞瑞复合材料有限责任公司 | High-performance diamond composite cutter bit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916931A (en) * | 2017-12-07 | 2018-04-17 | 徐州徐工基础工程机械有限公司 | A kind of cutting head of roadheader and development machine for hard rock operating mode |
| CN107916931B (en) * | 2017-12-07 | 2023-12-15 | 徐州徐工基础工程机械有限公司 | Heading machine cutting head for hard rock working condition and heading machine |
| CN108104809A (en) * | 2017-12-11 | 2018-06-01 | 三重型装备有限公司 | The body of the cutting head, cutterhead and development machine |
| CN113153164A (en) * | 2021-04-20 | 2021-07-23 | 金沙县仁德钻探工具有限公司 | Four-wing flat-top eight-tooth drill bit |
| CN113153164B (en) * | 2021-04-20 | 2024-02-23 | 金沙县仁德钻探工具有限公司 | Four-wing flat-top eight-tooth drill bit |
| CN116335697A (en) * | 2023-03-06 | 2023-06-27 | 无锡华瀚能源装备科技有限公司 | Cutting head for self-planning cutting path heading machine |
| CN116335697B (en) * | 2023-03-06 | 2023-11-03 | 无锡华瀚能源装备科技有限公司 | Cutting head for self-planning cutting path heading machine |
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| CN107060754B (en) | 2018-12-14 |
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