CN106437704B - A kind of coal petrography cutting process and Novel cutting tooth - Google Patents
A kind of coal petrography cutting process and Novel cutting tooth Download PDFInfo
- Publication number
- CN106437704B CN106437704B CN201611088938.9A CN201611088938A CN106437704B CN 106437704 B CN106437704 B CN 106437704B CN 201611088938 A CN201611088938 A CN 201611088938A CN 106437704 B CN106437704 B CN 106437704B
- Authority
- CN
- China
- Prior art keywords
- tooth
- cutting
- coal petrography
- pick
- coal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
- E21C35/1837—Mining picks; Holders therefor with inserts or layers of wear-resisting material characterised by the shape
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21C35/187—Mining picks; Holders therefor with arrangement of fluid-spraying nozzles
Abstract
The invention patent relates to coal-cutting machinery fields, more particularly to a kind of coal petrography cutting process and Novel cutting tooth.Goal of the invention is to provide a kind of coal petrography cutting process and Novel cutting tooth, expands the mode coal petrography cutting combined with high pressure gas using pick machinery cutting, coal petrography is by the squeezing action of pick and the dilating effect of high pressure gas, it is easier to from nicking.Novel cutting tooth overall structure is revolving body, it is made of tooth body and tooth tip two parts, tooth is as a cylindrical structure, bottom opens up cylindrical bottom outlet, the bottom outlet is stepped hole, interior logical high pressure gas, helicoidal structure is distributed in tooth body surface, helicoidal structure section is trapezoidal, and several round ventholes are evenly equipped in the body structure surface, the venthole is communicated with the bottom outlet of tooth body bottom, cutting process of the invention can change the stress of coal petrography, improve pick stress, reduce the abrasion of pick, broken coal efficiency is improved simultaneously, to reduce coal mining cost, with certain economic benefit.
Description
Technical field
The invention patent relates to coal-cutting machinery fields, more particularly to a kind of coal petrography cutting process and Novel cutting tooth.
Background technique
Currently, the major way of drum shearer coal petrography cutting is to carry out mechanical cutting using pick, coal petrography is by cutting
The clipping force of tooth gets off from nicking.Pick-shaped cutter, the master of pick-shaped cutter coal petrography cutting is widely used in coal winning machine cutting bit at present
Wanting mode is pressure of the coal petrography by pick, when external force reaches coal petrography compression strength, coal petrography rupture.In cutting course, cut
Odontotripsis is serious, needs often to be replaced, these all in a disguised form improve coal production cost.The physical property of coal shows,
Tensile strength is less than compression strength, i.e., is easier when its under tension when ratio is under pressure broken.Therefore, if in coal petrography cutting
During, make coal petrography by certain tensile stress, will a degree of stress for reducing pick, so as to improve coalcutter rolling
The stress of pick on cylinder reduces pick abrasion, improves pick service life, while improving broken coal efficiency, and then improve and adopt
Coal efficiency reduces cost of winning.Therefore, coal petrography cutting form and pick mechanical structure are innovated, it is imperative.
Summary of the invention
The invention patent is designed to provide a kind of coal petrography cutting process and Novel cutting tooth, thus it is possible to vary the stress of coal petrography
State improves pick stress, reduces the abrasion of pick, improves pick service life, while improving broken coal efficiency, Jin Erti
High coal mining efficiency has certain economic benefit to reduce coal mining cost.
To achieve the above object of the invention, the present invention is using following design:
By the force way of coal petrography during change pick cutting, it is easier to coal petrography from nicking.Traditional pick type
When pick cutting coal petrography, squeezing action of the coal petrography by pick-shaped cutter is finally got off from nicking.Since the tension of coal petrography is strong
Degree is less than compression strength, therefore, is easier to get off from nicking when coal petrography is by tensile stress.Coal is exactly utilized in the present invention
This characteristic of rock, opens up cylindrical bore inside Novel cutting tooth, and high pressure gas, pick cutting coal petrography can be injected in the inner hole
When, high pressure gas is injected from the inner hole, and is sprayed by other ventholes, is filled to high pressure gas in coal petrography crack, further
Expand coal petrography crack, coal petrography is by certain tensile stress, it is easier to from nicking, that is, use pick machinery cutting and high pressure
The mode coal petrography cutting that gas flaring combines while squeezing action of the coal petrography by pick-shaped cutter, is filled by high pressure gas
Enter tensile stress caused by the expansionary force in coal petrography crack.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
By the squeezing action of pick and the expansionary force collective effect of high pressure gas on coal petrography, high pressure gas is filled to coal petrography
In crack, make coal petrography by certain tensile stress, it is easier to from nicking.To realize the cutting process, it is necessary to design one kind
New structural pick, overall structure are revolving body, are made of tooth body and tooth tip two parts, open in Novel cutting tooth tooth body bottom
If cylindrical bottom outlet, which is stepped hole, leads to high pressure gas in the bottom outlet, and when pick cutting coal petrography, high pressure gas enters should
Helicoidal structure is distributed with as a cylindrical structure, surface in bottom outlet, tooth, enhances the spin performance of pick, and helicoidal structure is cut
Face is trapezoidal, and is evenly equipped with several round ventholes, the bottom outlet phase of the venthole and tooth body bottom on the helicoidal structure surface
Logical, high pressure gas is sprayed from these ventholes, is applied in coal petrography crack.Tooth tip is integrally in cone, and the vertex of a cone has centainly
Fillet, surface are welded with 3 ~ 6 circular arc type wear ribs from the vertex of a cone to cone bottom generatrix direction, which uses high abrasion material
Material, section are in circular arc type, and both ends end face is curved surface, which can not only increase the contact surface area of pick and coal petrography, more sharp
In broken coal, and the abrasion of pick tooth tip can be reduced, and after fusiform structure abrasion, can be without dismounting, it directly will be new
Wear rib is welded to tooth tip surface.
Usefulness of the present invention is: can improve pick stress, reduce the abrasion of pick, improve pick and use the longevity
Life reduces coalcutter downtime, while improving broken coal efficiency, to reduce coal mining cost, has certain economic effect
Benefit.
Detailed description of the invention
Attached drawing 1 is the Novel cutting tooth main view in apparatus of the present invention, and Fig. 2 is Novel cutting tooth main view cross-sectional view.Wherein, 1
It is tooth tip for tooth body, 2,3 be bottom outlet, and 4 be helicoidal structure, and 5 be venthole, and 6 be wear rib.
Specific embodiment
The mode coal petrography cutting combined is expanded with high pressure gas using pick machinery cutting.To realize the cutting process,
When work, while Novel cutting tooth squeezes coal petrography, the high pressure gas being passed through in Novel cutting tooth, which goes out in venthole 5, to be sprayed,
High pressure gas is filled in coal petrography crack, makes coal petrography by certain tensile stress, to be easier to from nicking.Novel cutting tooth
Overall structure is revolving body, is made of tooth body 1 and 2 two parts of tooth tip, and 1 bottom of tooth body opens up cylindrical bottom outlet 3, and bottom outlet 3 is rank
Terraced hole, leads to high pressure gas in bottom outlet 3, and when pick cutting coal petrography, high pressure gas enters bottom outlet 3, and from the outlet communicated with bottom outlet 3
It is sprayed in hole 5.Tooth body 1 is a cylindrical structure, and surface is distributed with helicoidal structure 4, enhances the spin performance of pick.Tooth tip
2 is whole in cone, and surface is welded with 3 ~ 6 circular arc type wear ribs 6 from the vertex of a cone to cone bottom generatrix direction, which adopts
With high abrasion resisting material, section is in circular arc type, which can not only increase the contact surface area of pick and coal petrography, more conducively broken
Coal, and the abrasion of pick tooth tip 2 can be reduced.After wear rib 6 is worn, disassembly pick is not had to, directly by new wear rib 6
It is welded to 2 surface of tooth tip.
Claims (2)
1. a kind of coal petrography cutting Novel cutting tooth is technically characterized in that overall structure is revolving body, by tooth body (1) and tooth tip
(2) two parts form, and open up cylindrical bottom outlet (3) in tooth body (1) bottom, and bottom outlet (3) is stepped hole, lead to high pressure in bottom outlet (3)
Gas, when pick cutting coal petrography, high pressure gas enters the bottom outlet (3), and tooth body (1) is a cylindrical structure, and spiral shell is distributed in surface
Revolve shape structure (4), helicoidal structure (4) section be it is trapezoidal, and helicoidal structure (4) surface be evenly equipped with it is several it is circular go out
Stomata (5), the venthole (5) are communicated with the bottom outlet (3) of tooth body (1) bottom, and high pressure gas is sprayed from these ventholes (5),
It is applied in coal petrography crack；For tooth tip (2) integrally in cone, the vertex of a cone has certain fillet, and surface is from the vertex of a cone to cone bottom bus
Directional spreding has 3 ~ 6 circular arc type wear ribs (6).
2. a kind of coal petrography cutting Novel cutting tooth as described in claim 1 is technically characterized in that wear rib (6) using high resistance to
Material is ground, section is in circular arc type, and both ends end face is curved surface, is welded together with tooth tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088938.9A CN106437704B (en) | 2016-12-01 | 2016-12-01 | A kind of coal petrography cutting process and Novel cutting tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088938.9A CN106437704B (en) | 2016-12-01 | 2016-12-01 | A kind of coal petrography cutting process and Novel cutting tooth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106437704A CN106437704A (en) | 2017-02-22 |
| CN106437704B true CN106437704B (en) | 2018-12-07 |
Family
ID=58222507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611088938.9A Expired - Fee Related CN106437704B (en) | 2016-12-01 | 2016-12-01 | A kind of coal petrography cutting process and Novel cutting tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106437704B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083958A (en) * | 2017-06-15 | 2017-08-22 | 河南理工大学 | A kind of Novel cutting tooth |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587991A2 (en) * | 1992-09-14 | 1994-03-23 | KRUMMENAUER GmbH & CO. KG | Pickholder for shears drum or cutting head |
| CN201428456Y (en) * | 2009-01-19 | 2010-03-24 | 邵祥顺 | Rectangular strip hard rock conical cutting teeth |
| CN101985877A (en) * | 2010-09-09 | 2011-03-16 | 王逢旦 | High pressure water jet cutting drum coal dropping double power shearer |
| CN202441380U (en) * | 2012-02-22 | 2012-09-19 | 崔宇 | High-pressure coal mining auxiliary equipment for mine |
| CN202707050U (en) * | 2012-04-17 | 2013-01-30 | 张传志 | Novel mine entry-driving machine auxiliary cutting device |
| CN104564065A (en) * | 2013-10-11 | 2015-04-29 | 朱清德 | Novel rotating abrasive water jet cutting tooth |
-
2016
- 2016-12-01 CN CN201611088938.9A patent/CN106437704B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587991A2 (en) * | 1992-09-14 | 1994-03-23 | KRUMMENAUER GmbH & CO. KG | Pickholder for shears drum or cutting head |
| CN201428456Y (en) * | 2009-01-19 | 2010-03-24 | 邵祥顺 | Rectangular strip hard rock conical cutting teeth |
| CN101985877A (en) * | 2010-09-09 | 2011-03-16 | 王逢旦 | High pressure water jet cutting drum coal dropping double power shearer |
| CN202441380U (en) * | 2012-02-22 | 2012-09-19 | 崔宇 | High-pressure coal mining auxiliary equipment for mine |
| CN202707050U (en) * | 2012-04-17 | 2013-01-30 | 张传志 | Novel mine entry-driving machine auxiliary cutting device |
| CN104564065A (en) * | 2013-10-11 | 2015-04-29 | 朱清德 | Novel rotating abrasive water jet cutting tooth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106437704A (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106640067B (en) | A kind of Shearer Helical Drum for cutting dirt band coal petrography | |
| CN106437704B (en) | A kind of coal petrography cutting process and Novel cutting tooth | |
| CN204225770U (en) | A kind of combined type diamond-impregnated bit | |
| CN202509544U (en) | Quartering hammer drill rod | |
| CN102733757B (en) | Drill bit of drilling type coal mining machine | |
| CN206562931U (en) | A kind of coal petrography cut Novel cutting tooth | |
| CN204266929U (en) | A kind of diamond bit with gauge structure | |
| CN204782795U (en) | Mining tri -cone bit alloy tooth | |
| CN202064949U (en) | Tapered rock-breaking spiral drum of coal mining machine | |
| CN204212697U (en) | Be adapted to the PDC drill bit that shale gas well shale formation creeps into | |
| CN203729934U (en) | Expansion cone | |
| CN203347793U (en) | Pickaxe type cutting pick provided with elastic function structure and hard alloy head with non-circular-arc conical surface | |
| CN203925495U (en) | Buffer-type welding pick-shaped cutter for coal-winning machine | |
| CN109798076A (en) | Long screw drill rod damper | |
| CN105257289A (en) | Coal cutter drum with wear-resistant ultrasonic cutting picks | |
| CN203114204U (en) | Spiral drill collar having high resistance to abrasion | |
| CN205189864U (en) | Dig pick tool bit for coal | |
| CN204060690U (en) | The pick that a kind of wear-resisting type rotates | |
| CN204060537U (en) | Row's powder drilling rod in dry type | |
| CN201363147Y (en) | Long-service life pick-like bit | |
| CN203145881U (en) | Refloatation covering milling tool | |
| CN103233733A (en) | Coal cutter spiral roller | |
| CN204878229U (en) | Bipolar screw bores tail screw with anti - tooth readily removable structure | |
| CN204984415U (en) | Wear -resistingly prevent grinding partially pick | |
| CN211230249U (en) | PDC drill bit for positioning anchor cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 Termination date: 20191201 |