CN203463018U - Drilling tool for boulder yield auger coal mining machine - Google Patents
Drilling tool for boulder yield auger coal mining machine Download PDFInfo
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- CN203463018U CN203463018U CN201320472909.8U CN201320472909U CN203463018U CN 203463018 U CN203463018 U CN 203463018U CN 201320472909 U CN201320472909 U CN 201320472909U CN 203463018 U CN203463018 U CN 203463018U
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- coal
- drilling tool
- cutting
- fixed
- mining machine
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Abstract
The utility model belongs to coal mine production coal-mining machinery and particularly relates to a drilling tool for a boulder yield auger coal mining machine. The drilling tool comprises a drum hub (8), helical blades (7), rib plates (6), cutting tooth bases (5) and cutting teeth (4). A plurality of helical blades (7) are fixed on the outer circumference of the drum hub (8) axially equidistantly, a plurality of helical rib plates (6) are equidistantly fixed on the helical blades (7) at the top end, a plurality of cutting tooth bases (5) are equidistantly fixed on the outer sides of the helical rib plates (6), the cutting teeth (4) are fixed on every cutting tooth base (5), an end disc (3) is fixed at the junction of the middle of the top ends of the helical rib plates (6), a drill bit base (2) is fixed on the end disc (3), and a coal cutting alloy drill bit (1) is installed in the drill bit base (2). When coal is cut, the alloy drill bit at the front end of the drilling tool for the boulder yield auger coal mining machine first drills in a coal wall by a bit; when other cutting teeth begin to cut the coal, due to the coal wall stress concentration effect, the coal wall can be crushed into chunks to fall, the coal boulder yield and coal cutting efficiency are improved, and the economic benefit is also increased simultaneously.
Description
Technical field
The utility model belongs to coal production coal-cutting machinery, particularly a kind of boulder yield auger coal mining machine drilling tool.
Background technology
Present stage China's coal-mine thin seam mining auger coal mining machine used, if the larger coal of cut firmness coefficient during work, the drilling depth of pick while needing to reduce cutting, cause coal cutting piece rate lower, granularity is little, efficiency is low, is unfavorable for the propelling of coal mining.If increase the each coal cutting degree of depth of drilling tool, can cause coal-winning machine underpower, reduce drilling speed, the raising of the efficiency that is still unfavorable for mining.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of simple in structure, improves the boulder yield auger coal mining machine drilling tool of the piece rate of coal cutting and the operating efficiency of coal-winning machine.
The technical scheme that the utility model technical solution problem adopts is: boulder yield auger coal mining machine drilling tool comprises a hub, helical blade, gusset, pick box, pick, be characterized on the excircle of cylinder hub axially all apart from fixing several pieces helical blades, on the helical blade on top all apart from fixing several spiral helicine gussets, on spiral helicine gusset lateral surface all apart from fixing several pick boxs, fixing pick on each pick box, the fixing end plate of intersection in the middle of the top of spiral helicine gusset, fixed drill bit seat on end plate, coal cutting alloy bit is installed in drill headstock.
The beneficial effects of the utility model are: the alloy bit of the front end of boulder yield auger coal mining machine drilling tool, when coal cutting, first with any, pierce rib, when other pick starts coal cutting, due to the concentrated effect of rib stress, can squeezedly be broken into bulk and fall, improve the piece rate of coal and the efficiency of coal cutting, also increase economic benefit simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, with embodiment, illustrate.
Fig. 1 is the structure chart of boulder yield auger coal mining machine drilling tool.
In figure, 1-coal cutting alloy bit; 2-drill headstock; 3-end plate; 4-pick; 5-pick box; 6-gusset; 7-helical blade; 8-cylinder hub.
The specific embodiment
Embodiment, with reference to accompanying drawing 1, boulder yield auger coal mining machine drilling tool is axially all apart from being welded and fixed three helical blades 7 on the outer circumference surface of cylinder hub 8, on the helical blade 7 on top all apart from being welded and fixed three spiral helicine gussets 6, on the lateral surface of gusset 6, all apart from being welded and fixed five pick boxs 5, a pick 4 is installed above pick box 5 at each.In the middle of the top of spiral helicine gusset 6, the fixing end plate 3 of intersection is welded and fixed drill headstock 2 on end plate 3, adopts taper shank taper sleeve type connection coal cutting alloy bit 1 in drill headstock 2, is convenient to the installation and removal of coal cutting alloy bit 1.
The use procedure of boulder yield auger coal mining machine drilling tool is: drilling tool is placed in to colliery front end, and drilling tool presses to rib cutting, and the coal cinder that cutting is fallen, transports because helical blade 7 is directed on haulage device.
Claims (1)
1. a boulder yield auger coal mining machine drilling tool, comprise a hub (8), helical blade (7), gusset (6), pick box (5), pick (4), it is characterized in that on the excircle of cylinder hub (8) axially all apart from fixing several pieces helical blades (7), on the helical blade (7) on top all apart from fixing several spiral helicine gussets (6), on spiral helicine gusset (6) lateral surface all apart from fixing several pick boxs (5), at the upper fixedly pick (4) of each pick box (5), the fixing end plate (3) of intersection in the middle of the top of spiral helicine gusset (6), at the upper fixed drill bit seat (2) of end plate (3), coal cutting alloy bit (1) is installed in drill headstock (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320472909.8U CN203463018U (en) | 2013-08-05 | 2013-08-05 | Drilling tool for boulder yield auger coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320472909.8U CN203463018U (en) | 2013-08-05 | 2013-08-05 | Drilling tool for boulder yield auger coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463018U true CN203463018U (en) | 2014-03-05 |
Family
ID=50175390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320472909.8U Expired - Fee Related CN203463018U (en) | 2013-08-05 | 2013-08-05 | Drilling tool for boulder yield auger coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179503A (en) * | 2014-08-13 | 2014-12-03 | 陈菊芳 | Two-speed mining drill bit |
-
2013
- 2013-08-05 CN CN201320472909.8U patent/CN203463018U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179503A (en) * | 2014-08-13 | 2014-12-03 | 陈菊芳 | Two-speed mining drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20140805 |
|
| EXPY | Termination of patent right or utility model |