CN202325511U - Wedge-shaped cutting tooth structure special for coal mining machine drum - Google Patents
Wedge-shaped cutting tooth structure special for coal mining machine drum Download PDFInfo
- Publication number
- CN202325511U CN202325511U CN2011204676617U CN201120467661U CN202325511U CN 202325511 U CN202325511 U CN 202325511U CN 2011204676617 U CN2011204676617 U CN 2011204676617U CN 201120467661 U CN201120467661 U CN 201120467661U CN 202325511 U CN202325511 U CN 202325511U
- Authority
- CN
- China
- Prior art keywords
- wedge
- tooth
- shaped
- wedge type
- pick
- 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
Images
Abstract
The utility model relates to a wedge-shaped cutting tooth structure special for a coal mining machine drum. The wedge-shaped cutting tooth structure comprises a wedge-shaped tooth hard alloy head and a wedge-shaped tooth body, wherein the wedge-shaped tooth body and the wedge-shaped tooth hard alloy head are welded into a whole, the edge inclination angle lambda of the upper wedge-shaped cutting tooth edge part of the wedge-shaped tooth body is 40 to 45 degrees, and the sharp angle of the wedge-shaped cutting tooth of the wedge-shaped tooth body is 80 to 90 degrees. The part, extending out of a tooth seat, of the wedge-shaped cutting tooth is arranged in a mode of twisting forwards for 30 degrees and inclining forwards for 15 degrees relative to a tooth handle of the cutting tooth, namely cut in a 45-degree angle on the drum. The wedge-shaped cutting tooth structure solves the problems of insufficient seam length and insufficient strength of the tooth seat on the drum, and also solves the problem that an inner spray nozzle seat of the drum cannot be placed on the outer edge of the drum because the tooth seat occupies a big space on the outer edge of the drum; the wedge-shaped cutting tooth does not rotate in work, so the consumption of energy is low and little dust is produced; and the section area of the wedge-shaped cutting tooth structure wedged into the solid body of coal rock is small, and the coal rock can be peeled.
Description
Technical field
The utility model relates to a kind of wedge type pick, the wedge type pick structure of coal mining machine roller special use specifically, and the blade that its wedge type pick is sharp can be wedged the coal petrography entity with minimum resistance.
Background technology
At present, domestic and international widely used pick type mainly contains two kinds, and a kind of is flat pick, because its radially installation on coal mining machine roller, so be called radial pick again.For a long time because the brazing quality of sheet carbide does not pass a test, should adopt the flat pick of sheet carbide to adopt the column shaped carbide alloy head that has ridge, and the cutting edge inclination of ridge alloy head is many less than 25 ° at home more.To change into the broken coal of extruding pattern with the flat pick that is cut into the broken coal of main pattern be the flat pick that the tapered pick of being similar to of master breaks coal mechanism for this belongs to.If the broken similar flat pick of coal mechanism has then lost the advantage with tapered pick competition.Install because tapered pick is 45 on cylinder, with the increasing of monodentate cutting depth, it is littler than advancing the speed of pressure surface, and field measurement shows that the coal-winning machine power consumption of the homemade flat pick of 23# is higher than tapered pick when monodentate cutting depth >=40mm.And present coal-winning machine power both domestic and external is increasing, and the user of flat pick is fewer and feweri for this reason, has by the trend of tapered pick replacement.Although so, centering mini power coal-winning machine, homemade flat pick still has one seat.Because under monodentate cutting depth≤40mm condition, adopt flat pick to have the advantage that energy consumption is low, dust is little.This is role because 25 ° of swords of flat pick head incline; Be that flat pick head only has partial width to be pressed into coal body; Coal bursts apart, and tapered pick does not have sharp cutting edge, on cylinder 45 install and the cut process in free to rotately constituted its intrinsic technical characterictic.Its maximum characteristics are that applicability is strong, promptly can be used under the various ature of coal conditions because do not have sharp cutting edge with the coal seam in during hard field trash bump, its tip is difficult for being damaged inefficacy; 45 is installed, and the ratio pressure surface of participating in the extruding coal petrography with the increasing of its monodentate cutting-in is advanced the speed little, and under the big for this reason cutting-in situation, energy consumption is low; Ability rotation in the course of work increases its application life.But tapered pick does not have sharp cutting edge and has constituted in the broken coal petrography process tapered and contact with coal petrography; This tapered facing then forms great compact core (being pressed into the coal of powder) earlier when coal petrography pushes; When pick continues pressurization to it, coal dust to around expansion produce tension force, when tension force during greater than the intensity of coal petrography; The fragmentation that is accompanied by coal petrography reaches by wind-force, and dust will fly upward everywhere.Dust is big, and worsening the work plane working environment is the fatal weakness of tapered pick; Although can rotation help to prolong its application life; But be accompanied by the wearing and tearing of carbide alloy; Pick head denticle is wearing and tearing promptly also, when the parent of pick head also loses the function of protection hard alloy head, by the coal petrography of cut the pick carbide head are produced counter-pressure; Then can it be peeled off, this is the principal mode that tapered pick lost efficacy.
In prior art; Once designing the head cutting edge inclination is the flat pick of 40 ° called after QJB pick; The anthracitic actual measurement of cut shows on the EDW-170 coal-winning machine of Jincheng: the flat pick that cutting edge inclination is 40 ° is compared than the flat pick of 23# of 25 ° of cutting edge inclinations; Energy consumption can reduce by 20%, and the former mean power is 120KW, and the latter is 150KW.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned weak point, thereby provides a kind of coal mining machine roller special-purpose wedge type pick structure, does not rotate in this wedge type pick course of work, and energy consumption is low, dust is little; The basal area of wedging coal petrography entity is very little, and coal petrography can be peeled off; Can realize being main broken coal mechanism with the shear tension.
The technical scheme that provides according to the utility model; The wedge type pick structure that a kind of coal mining machine roller is special-purpose; Comprise wedge type tooth hard alloy head, wedge type tooth denticle; Said wedge type tooth denticle and the soldering of wedge type tooth hard alloy head are integral, and characteristic is: the cutting edge inclination λ of wedge type pick blade is 40 °～45 ° on the said wedge type tooth denticle, and its wedge type pick wedge angle is 80 °～90 °.
Further improve as the present invention, its relative its tooth handle of part that stretches out toothholder of said wedge type pick reverses 30 ° of angles forward, and install at the 15 ° of angles that turn forward, and promptly on cylinder, is the 45 cut.
Compared with present technology the utility model has the following advantages:
The utility model has solved that the fusion length of toothholder on cylinder is not enough, the problem of strength deficiency, and also to have solved toothholder occupation space on the cylinder outer rim too big, has influence on the problem that the internal spraying nozzle block of cylinder is laid on the cylinder outer rim nowhere; Do not rotate in this wedge type pick course of work, dust is little; The basal area of wedging coal petrography entity is very little, and coal petrography can be peeled off; Its wedge type pick mainly is to break coal through extrusion stretching, and it has made full use of the characteristics that relatively grow at coal bedding, joint, makes that energy consumption, dust reduce significantly in the coal mining process.
Description of drawings
Fig. 1 is the utility model wedge type pick structural front view.
Fig. 2 is the utility model wedge type pick structure vertical view.
The specific embodiment
Following the utility model will combine the embodiment in the accompanying drawing to further describe:
Shown in Figure 1, comprise wedge type tooth hard alloy head 1, wedge type tooth denticle 2.
The described wedge type tooth of the utility model denticle 2 is integral with 1 soldering of wedge type tooth hard alloy head, cutting edge inclination λ=40 of wedge type pick blade ° on the said wedge type tooth denticle 2～45 °, and its wedge type pick wedge angle is 80 °～90 °.
When the utility model uses, its relative its tooth handle of denticle part that stretches out toothholder is reversed 30 ° of angles forward earlier, its toothholder only reverses 15 ° of angle assembly weldings forward at cylinder, on cylinder, becomes the 45 cut as tapered pick.This has not only solved, and the fusion length of toothholder on cylinder is not enough, the problem of strength deficiency, and also to have solved toothholder occupation space on the cylinder outer rim too big, has influence on the problem that the internal spraying nozzle block of cylinder is laid on the cylinder outer rim nowhere.
The utility model all belongs to the key element in " the novel coal mining machine roller with fluting function " with the fluting pick, and the wedge type pick mainly is installed in the end plate position of cylinder on cylinder; On the blade of cylinder, it is always arranged with the pick of slotting in pairs, immediately following installing after the fluting pick and to 5 °～10 ° angles of cylinder end plate direction inclination, is used for wedging down fluting pick and stays the coal petrography entity between kerf.
The utility model is auxiliary fluting pick on cylinder, mainly is to break coal through extrusion stretching, and it has made full use of the characteristics that relatively grow at coal bedding, joint, makes that energy consumption, dust reduce significantly in the coal mining process.The cutting load of himself is also not very big, for this is not high to wedge type tooth denticle and the requirement of wedge type tooth hard alloy head, adopts denticle material, the carbide alloy trade mark, the brazing material of general tapered pick to get final product.
For making wedge type tooth hard alloy head injury-free, the concrete technological process of being adopted is following:
Blanking → heating → base → moulding → side cut → normalizing → tempering → machine → check → previous heat treatment → sandblast → expansion carbide alloy assembly welding hole → soldering hard alloy head → isothermal hardening → lonneal → sandblast → antirust processing → warehouse-in.
Claims (3)
1. the special-purpose wedge type pick structure of a coal mining machine roller; Comprise wedge type tooth hard alloy head (1), wedge type tooth denticle (2); Said wedge type tooth denticle (2) is integral with wedge type tooth hard alloy head (1) soldering, it is characterized in that: the cutting edge inclination λ that said wedge type tooth denticle (2) is gone up wedge type pick blade is 40 °～45 °.
2. the special-purpose wedge type pick structure of a kind of coal mining machine roller as claimed in claim 1 is characterized in that:
Said wedge type pick wedge angle is 80 °～90 °.
3. the special-purpose wedge type pick structure of a kind of coal mining machine roller as claimed in claim 1 is characterized in that: its relative its tooth handle of part that stretches out toothholder of said wedge type pick reverses 30 ° of angles forward, and install at the 15 ° of angles that turn forward, and promptly on cylinder, is the 45 cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204676617U CN202325511U (en) | 2011-11-22 | 2011-11-22 | Wedge-shaped cutting tooth structure special for coal mining machine drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204676617U CN202325511U (en) | 2011-11-22 | 2011-11-22 | Wedge-shaped cutting tooth structure special for coal mining machine drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325511U true CN202325511U (en) | 2012-07-11 |
Family
ID=46437493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204676617U Expired - Fee Related CN202325511U (en) | 2011-11-22 | 2011-11-22 | Wedge-shaped cutting tooth structure special for coal mining machine drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400687A (en) * | 2011-11-22 | 2012-04-04 | 无锡速力特机械科技有限公司 | Special wedge-type section tooth structure for shearer drum |
-
2011
- 2011-11-22 CN CN2011204676617U patent/CN202325511U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400687A (en) * | 2011-11-22 | 2012-04-04 | 无锡速力特机械科技有限公司 | Special wedge-type section tooth structure for shearer drum |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201730622U (en) | Pickaxe-shaped cutting pick | |
| CN201433764Y (en) | Cutterhead for longitudinal shaft type development machine | |
| CN201214061Y (en) | Patch welding type squeezing and crushing roller | |
| CN202325511U (en) | Wedge-shaped cutting tooth structure special for coal mining machine drum | |
| CN215963809U (en) | Squeezing roller of roller press | |
| CN102383791A (en) | Shearer roller with slotting function | |
| CN102400687A (en) | Special wedge-type section tooth structure for shearer drum | |
| EP3524774A1 (en) | New cutting pick | |
| CN204646234U (en) | A kind of high-wear-resistance mining pick | |
| CN201696053U (en) | Hob ring for shield machine | |
| CN201915856U (en) | Drill rod and drill bit structure for rock drilling machine | |
| CN101748974A (en) | A kind of composite polycrystal-diamond that is used for well drilling and rock crushing tool | |
| CN202039850U (en) | Split rotary pick-shaped cutter bit | |
| CN211174103U (en) | Mining cutting pick | |
| CN203515312U (en) | Jackdrill with hexagonal drill rod with rubber coakeslet shank collar capable of being cooled | |
| CN201057047Y (en) | Hard alloy coal cutting tooth for mining | |
| CN202690056U (en) | Pick for embedding mining machinery | |
| CN202451159U (en) | Welding-free conical cutting tooth | |
| CN206768495U (en) | A kind of vibrospade of railroad ballast tamping tool | |
| CN201763352U (en) | Alloy block for shield machine hob ring | |
| CN214599572U (en) | Mechanical tooth head for pulverizer | |
| CN204646117U (en) | A kind of novel twolip plate tooth | |
| CN214944236U (en) | Embedded sharp pick | |
| CN202417553U (en) | Device for drawing anchor rod | |
| CN201546725U (en) | Multi-tooth head cutting pick for mining machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131122 |