CN204457765U - A kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter - Google Patents
A kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter Download PDFInfo
- Publication number
- CN204457765U CN204457765U CN201520022362.0U CN201520022362U CN204457765U CN 204457765 U CN204457765 U CN 204457765U CN 201520022362 U CN201520022362 U CN 201520022362U CN 204457765 U CN204457765 U CN 204457765U
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- China
- Prior art keywords
- cutter
- roadheader
- cutting head
- cutterhead
- point
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- 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
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Abstract
The utility model discloses a kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter.By the cutter of mining tunnel cutting head of roadheader, arranged by original symmetrical mode, improve as asymmetric manner is arranged, under asymmetric arrangement mode, the line of the center cutter point at two ends, left and right is without corresponding cutterhead section central point, the line of the center cutter point at two ends, left and right and the line institute angulation of one end center cutter point and cutterhead central point are 3 degree or 177 degree, when running into stickiness rock, adopt cutter and extended type cutter by the integrated mode installed an extended type cutter after every two cutters and replace, so, form a kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter.This utility model has simple operation specification, simple and practical feature, runs into the undergauge bit freezing problem of stickiness rock when can solve tunnelling, can break away from again cutter and to resonate the cutterhead job insecurity problem caused.
Description
Technical field
The utility model relates to a kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter.
Background technology
During coal mining, tunnelling is the important component part of shaft production, at present, the main fully-mechanized digging machine cut rock that adopts of coal mine roadway driving carrys out development work, the use of fully-mechanized digging machine accelerates the speed of tunnelling greatly, now, the symmetrical arrangement of the many employings of cutter that coal mine development machine cutterhead uses, in excavation operation when cutterhead High Rotation Speed, cutter itself can produce covibration, thus tendency cutterhead being had swing up and down, have a strong impact on stability during cutterhead work, decrease the application life of cutting head of roadheader.In addition, the cutterhead cutter of conventional coal mine tunneling machine, all etc. that size is isometric, when running into stickiness rock, by the expansion character of stickiness rock self and the acting in conjunction of powerful the pressure of the drill,, there is creeping distortion in boring and produce undergauge and then cause bit freezing in the inner rock stratum of drilling well very easily inwardly ablation.Therefore, under the original cutterhead good function condition of maintenance, design a kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter very necessary.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter.
For achieving the above object, the utility model provides following technical scheme: a kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter.By the cutter of mining tunnel cutting head of roadheader, arranged by original symmetrical mode, improve as asymmetric manner is arranged, originally the line of the central point of two ends, left and right cutter is through the central point of corresponding cutterhead section, the line institute angulation of the line section central point corresponding to cutterhead one end center cutter point of the center cutter point at two ends, left and right is 0 degree or 180 degree, under asymmetric arrangement mode, the line of the center cutter point at two ends, left and right is without the corresponding section central point of cutterhead, the line institute angulation of the line section central point corresponding to cutterhead one end center cutter point of the center cutter point at two ends, left and right is 3 degree or 177 degree, so, both significantly can reduce to be arranged symmetrically with the resonance harm that cutter brings, the swing impact that the uneven distribution of cutter can be avoided again to cause, improve the stability of cutterhead work greatly.For the undergauge problem running into stickiness rock and often produce, herein, adopt the cutter of mining cutting head of roadheader and extended type cutter by the integrated mode installed an extended type cutter after every two cutters and replace, extended type cutter is that the tool sharpening of mining cutting head of roadheader is extended 30mm.So, a kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter is formed.
When roadway opening, the mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter is used for digging in tunnel, when running into non-stickiness rock, mounting cutter on cutterhead, when running into stickiness rock, adopt the cutter of mining cutting head of roadheader and extended type cutter by the integrated mode installed an extended type cutter after every two cutters and replace, the undergauge problem running into stickiness rock can be solved, specification simple to operate, so both solved the undergauge bit freezing problem running into stickiness rock, the cutterhead job insecurity problem resonating and bring can have been broken away from again.
This mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter has simple operation specification, the undergauge bit freezing problem running into stickiness rock can be solved efficiently, the feature of the cutterhead job insecurity brought that resonates can be broken away from again, well improve drivage efficiency and the application life extending cutterhead.
Accompanying drawing explanation
Fig. 1 is mining original cutting head of roadheader front view;
Fig. 2 is the mining cutting head of roadheader front view being furnished with asymmetric Length discrepancy cutter;
Fig. 3 is mining original cutting head of roadheader A-A sectional view;
Fig. 4 is the utility model B-B sectional view;
Wherein, the mining cutting head of roadheader about 7. that 1. cutting arm 2. mining cutting head of roadheader 3. cutter 4. center cutter point 5. cutterhead section central point 6. is furnished with asymmetric Length discrepancy cutter holds line 8. one end center cutter point of center cutter point and the line 9. center cutter point line center cutter point of corresponding cutterhead section central point and cutterhead section central point line institute angulation 10. extended type cutter
Detailed description of the invention
Below in conjunction with accompanying drawing, by the description to embodiment, the utility model is described further:
Being mining original cutting head of roadheader front view as shown in Figure 1, is the mining cutting head of roadheader front view being furnished with asymmetric Length discrepancy cutter shown in Fig. 2, and Fig. 3 is mining original cutting head of roadheader A-A sectional view, and Fig. 4 is the utility model B-B sectional view, is furnished with the mining cutting head of roadheader 6 of asymmetric Length discrepancy cutter, by the cutter 3 of mining original tunnelling machine cutterhead 2, arrange that improvement is that asymmetric manner is arranged by original symmetrical mode, originally the line 7 of the central point 4 of two ends, left and right cutter is through the central point 5 of corresponding cutterhead section, line 8 angle of section central point 5 corresponding to cutterhead one end center cutter point 4 is 0 degree, under asymmetric arrangement mode, the line 7 of the center cutter point 4 at two ends, left and right is without the corresponding section central point 5 of cutterhead, the line 7 of the center cutter point 4 at two ends, left and right, it is 3 degree or 177 degree with line 8 angulations 9 of one end center cutter point 4 and cutterhead central point 5, so, both significantly can reduce to be arranged symmetrically with the resonance harm that cutter 3 brings, the swing impact that the uneven distribution of cutter 3 can be avoided again to cause, improve the stability of cutterhead work greatly.For the undergauge bit freezing problem running into stickiness rock and often produce, herein, adopt mining cutting head of roadheader cutter 3 and extended type cutter 10 by the alternate combinations pattern installing an extended type cutter 10 after every two cutters 3, extended type cutter 10 is processed by the cutter 3 of mining cutting head of roadheader 2 to extend 30mm.So, a kind of mining cutting head of roadheader 6 of being furnished with asymmetric Length discrepancy cutter is formed.
When roadway opening, the mining cutting head of roadheader 6 of being furnished with asymmetric Length discrepancy cutter is used for digging in tunnel, the cutter 3 that can reduce because of symmetry resonates the unstability impact of the cutterhead work caused, when running into non-stickiness rock, mounting cutter 3 on cutterhead, when running into stickiness rock, adopt the cutter 3 of mining cutting head of roadheader and extended type cutter 10 by the alternate combinations pattern installing an extended type cutter 10 after every two cutters 3, the undergauge problem running into stickiness rock can be solved.Specification simple to operate, runs into the undergauge problem of stickiness rock when so both solving tunnelling, can break away from again the cutterhead job insecurity problem resonating and bring.
Adopt technique scheme, a kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter, during for tunnelling, the arrangement of its asymmetric cutter, can reduce the impact of cutter resonance, improves the stability of cutterhead work; When running into non-stickiness rock, mounting cutter on cutterhead, when running into stickiness rock, by the alternate combinations pattern installing an extended type cutter after every two cutters, can solve the undergauge bit freezing problem running into stickiness rock.This mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter has simple operation specification, simple and practical feature, the undergauge problem of stickiness rock is run into when can solve tunnelling, the cutterhead job insecurity problem resonating and bring can be broken away from again, well improve drivage efficiency and the application life extending cutterhead.
Above-described is only preferred embodiment of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (1)
1. is furnished with the mining cutting head of roadheader of asymmetric Length discrepancy cutter for one kind, that the cutter of mining cutting head of roadheader (2) (3) is arranged by original symmetrical mode, improve as asymmetric manner is arranged, originally the line (7) of the central point (4) of two ends, left and right cutter is through the central point (5) of corresponding cutterhead section, it is 0 degree or 180 degree with line (8) the institute angulation of one end center cutter point (4) and cutterhead section central point (5), under asymmetric arrangement mode, the line (7) of the center cutter point (4) at two ends, left and right is without the central point (5) of corresponding cutterhead section, the line (7) of the center cutter point (4) at two ends, left and right, it is 3 degree or 177 degree with line (8) institute angulation (9) of one end center cutter point (4) and cutterhead central point (5), adopt the cutter of mining cutting head of roadheader (2) (3) and extended type cutter (10) by the integrated mode installed an extended type cutter (10) after every two cutters (3) and replace, it is characterized in that: described extended type cutter (10), is that the cutter of mining cutting head of roadheader (2) (3) processing is extended 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022362.0U CN204457765U (en) | 2015-01-13 | 2015-01-13 | A kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022362.0U CN204457765U (en) | 2015-01-13 | 2015-01-13 | A kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457765U true CN204457765U (en) | 2015-07-08 |
Family
ID=53664667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520022362.0U Expired - Fee Related CN204457765U (en) | 2015-01-13 | 2015-01-13 | A kind of mining cutting head of roadheader of being furnished with asymmetric Length discrepancy cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457765U (en) |
-
2015
- 2015-01-13 CN CN201520022362.0U patent/CN204457765U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150708 Termination date: 20160113 |