CN203430513U - Double-connected-pickaxe type cutting tooth seat of drum-type coal mining machine - Google Patents
Double-connected-pickaxe type cutting tooth seat of drum-type coal mining machine Download PDFInfo
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- CN203430513U CN203430513U CN201320381988.1U CN201320381988U CN203430513U CN 203430513 U CN203430513 U CN 203430513U CN 201320381988 U CN201320381988 U CN 201320381988U CN 203430513 U CN203430513 U CN 203430513U
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- pick
- coal
- tooth seat
- toothholder
- pickaxe
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Abstract
The utility model relates to the field of coal mining machinery and particularly relates to a double-connected-pickaxe type cutting tooth seat of a drum-type coal mining machine. The geometric structure and spatial layout of the existing pickaxe type cutting teeth seat have influence on the block coal rate, the powdered coal amount, the cutting-teeth-ratio energy consumption and the like. The utility model provides a novel tooth seat. The novel tooth seat is characterized in that two pickaxe type cutting teeth can be installed simultaneously, can form different angles (parallel, outwards inclining or inclining inwards), and are welded on a spiral roller according to a certain rule. Under the condition that the structure parameters and the number of the cutting teeth are same, the number of the cutting teeth distributed on a spiral drum blade can be reduced, so that the unit area acting on the coal and the rock is large. The double-connected-pickaxe type cutting tooth seat has the beneficial effects that when the pickaxe type cutting teeth of the double-connected-pickaxe type cutting tooth seat are adopted for breaking coal rock, not only can the gap between the adjacent cutting teeth be enlarged and can the coal falling capability be enhanced, but also the unit area acting on the coal and the rock is enlarged, the rolling force on the contact surface is reduced, the block coal rate is increased, the powdered coal amount is reduced and the unit cutting energy consumption is reduced.
Description
Technical field
Patent of the present invention relates to the key components and parts of cut in coal-winning machine or break mined material equipment, is specifically related to a kind of for the fixing part of the cutter of cut or broken coal petrography.
Background technology
Simply connected pick toothholder has been widely used on the drum shearer equipment of coal production, for fixing pick-shaped cutter.Simply connected pick toothholder distributes and is directly welded on according to certain rules on cylinder periphery with helix, and under the driving of actuating unit, pick-shaped cutter is realized coal petrography cutting.Therefore, the geometry of pick toothholder and space layout, directly affect the application life of its rock breaking capacity, cutting efficiency, lump coal rate and other component etc.Pick-shaped cutter toothholder adopts to forge and processes, and conventional pick-shaped cutter toothholder is the form of structure of simply connected pick toothholder; Pick-shaped cutter is assemblied in pick toothholder, and is fixed together by back-up ring, and the caudal peduncle on toothholder is welded on helix drum according to certain rules.Basic demand to toothholder performance: distribute and be directly welded on according to certain rules cylinder periphery with helix for filling the toothholder of pick-shaped cutter, rationally whether and quality its form of structure, can directly have influence on specific energy consumption, lump coal rate, coal amount and the cutting efficiency of pick, the toothholder of pick-shaped cutter is the form of structure of simply connected pick toothholder at present, the unit area that is distributed in two pick effect coal petrographys that helical blade is adjacent is little, cause rolling with rubbing action on contact surface to strengthen, make specific energy consumption amount large, coal amount is many.From improving lump coal rate, reduce coal amount, reducing specific energy of cutting, reasonably tooth seat structure form is particularly important.
Summary of the invention
The object of the invention is to solve above-mentioned not enough problem, the novel duplex pick-shaped cutter toothholder of using on a kind of flitting is proposed, this toothholder is by one, to forge material to process two cylindrical holes, these two cylindrical hole center lines can be parallel to each other, angle acutangulates or obtuse angle, this frame mode can be installed two pick-shaped cutters simultaneously, make these two pick-shaped cutters can become different angle (parallel, outward-dipping or slope inwardly), then toothholder is directly welded on helix drum according to certain rules.In geometric parameter and the same number of situation of pick, adopt duplex pick-shaped cutter toothholder can reduce pick in the distribution density of helix drum.When usefulness of the present invention adopts the broken coal petrography of pick-shaped cutter of duplex pick-shaped cutter toothholder, can bring into play the effect of the blade of pick-shaped cutter, improve cutting efficiency, can embody again intensity and the powerful broken ability of pick-shaped cutter; Meanwhile, because toothholder adopts duplex pick-shaped cutter tooth seat structure form, it is large that pick acts on coal petrography unit area simultaneously, rolling with rubbing action on contact surface reduces, and makes the once pulverizing ratio of coal few, improves the rate that of lump coal, and reduce unit cut energy consumption, thereby improve coal production rate.
In order to solve the problems of the technologies described above, the present invention has designed the duplex pick-shaped cutter toothholder of drum shearer, comprising: duplex pick-shaped cutter toothholder main body, with the tooth cover, pick unit, resilient sleeve, the back-up ring that cooperatively interact.
Two pick-shaped cutter unit are contained in tooth cover endoporus, and be fixed by resilient sleeve, then be arranged on duplex pick-shaped cutter toothholder, and fix in case anti-avulsion falls by back-up ring, last duplex pick-shaped cutter toothholder is directly welded on the blade of helix drum according to certain rules.The pick performance with duplex pick-shaped cutter tooth seat structure: can expand pick width and reduce the pick number being distributed on helix drum blade, make to act on coal petrography unit area large, rolling with rubbing action on contact surface reduced, improve extraction Coal Quality, improve lump coal rate, reduce unit cut energy consumption, thereby improve coal production rate.
Innovation of the present invention is that duplex pick-shaped cutter toothholder can install two pick-shaped cutters simultaneously, and two pick-shaped cutters of this that install can become different angle (parallel, outward-dipping or slope inwardly), and then toothholder is directly welded on helix drum according to certain rules.In geometric parameter and the same number of situation of pick, can expand pick width and reduce the pick number (pick on helical blade distributes more sparse) being distributed on helix drum blade, while making the broken coal petrography of pick-shaped cutter, can bring into play the effect of the blade of knife shape cutter teeth, improve crushing efficiency, can make full use of avalanche effect again, coal ridge in the middle of not staying.Adopt the pick of duplex pick-shaped cutter toothholder to increase space between adjacent pick, coal breakage ability is strengthened; Act on coal petrography unit area large, the rolling effect on contact surface is reduced, improve extraction Coal Quality, improve lump coal rate, reduce unit cut energy consumption, thereby improve coal production rate.
Accompanying drawing explanation
Fig. 1 is assembly structure stereogram of the present invention when parallel (two pick-shaped cutters of installing), and Fig. 2 is structural front view, Fig. 3 be in the left view of Fig. 2 along the sectional view of A-A, Fig. 4 is the top view of Fig. 2.Wherein 1 is pick unit, the 2nd, pick cover, the 3rd, duplex pick-shaped cutter toothholder main body, the 4th, resilient sleeve.
The specific embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are elaborated.
Pick-shaped cutter unit 1 is contained in pick and overlaps in 2 endoporus, and be fixed by resilient sleeve 4, then be arranged in duplex pick-shaped cutter toothholder main body 3, and fix in case anti-avulsion falls by back-up ring, last duplex pick-shaped cutter toothholder 3 is directly welded on the blade of helix drum according to certain rules.At work, the present invention is assembled to operating mechanism's circumference for the duplex pick-shaped cutter toothholder of two pick-like bits is installed, makes pick-shaped cutter drive operating mechanism to realize rotation and feed motion at other actuating unit, realize the mineral such as coal petrography cutting.
Claims (2)
1. the duplex pick-shaped cutter toothholder of drum shearer, comprise duplex pick-shaped cutter toothholder main body (3), with the tooth cover (2), pick unit (1), the resilient sleeve (4) that cooperatively interact.It is characterized in that: duplex pick-shaped cutter toothholder main body (3) has two cylindrical holes, thereby two pick-shaped cutters can be installed simultaneously.
2. duplex pick-shaped cutter toothholder according to claim 1, it is characterized in that: two cylindrical hole center lines in duplex pick-shaped cutter toothholder main body (3) can be parallel to each other, angle acutangulates or obtuse angle, this frame mode makes these two pick-shaped cutters can become different angle (parallel, outward-dipping or slope inwardly), and then toothholder is directly welded on helix drum according to certain rules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320381988.1U CN203430513U (en) | 2013-06-28 | 2013-06-28 | Double-connected-pickaxe type cutting tooth seat of drum-type coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320381988.1U CN203430513U (en) | 2013-06-28 | 2013-06-28 | Double-connected-pickaxe type cutting tooth seat of drum-type coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430513U true CN203430513U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320381988.1U Expired - Fee Related CN203430513U (en) | 2013-06-28 | 2013-06-28 | Double-connected-pickaxe type cutting tooth seat of drum-type coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430513U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334752A (en) * | 2013-06-28 | 2013-10-02 | 黑龙江科技学院 | Duplex pickaxe type cutting tooth holder of drum shearer |
| CN106869924A (en) * | 2017-05-02 | 2017-06-20 | 辽宁工程技术大学 | A kind of coal mining machine roller of low energy consumption abnormity pick |
-
2013
- 2013-06-28 CN CN201320381988.1U patent/CN203430513U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334752A (en) * | 2013-06-28 | 2013-10-02 | 黑龙江科技学院 | Duplex pickaxe type cutting tooth holder of drum shearer |
| CN106869924A (en) * | 2017-05-02 | 2017-06-20 | 辽宁工程技术大学 | A kind of coal mining machine roller of low energy consumption abnormity pick |
| CN106869924B (en) * | 2017-05-02 | 2018-08-24 | 辽宁工程技术大学 | A kind of coal mining machine roller of low energy consumption abnormity pick |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140212 Termination date: 20160628 |