CN204267030U - Double speed mining drill bit - Google Patents
Double speed mining drill bit Download PDFInfo
- Publication number
- CN204267030U CN204267030U CN201420454567.1U CN201420454567U CN204267030U CN 204267030 U CN204267030 U CN 204267030U CN 201420454567 U CN201420454567 U CN 201420454567U CN 204267030 U CN204267030 U CN 204267030U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- mandrel
- driven bevel
- bevel pinion
- transmission case
- 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
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Abstract
The utility model discloses a kind of double speed mining drill bit, coaxial drill group is provided with a mandrel, mandrel front end is connected with the section of discoid band gear teeth, core back-end is fixed on mechanism housing through transmission case by bearing, a hollow blanking drill bit coaxial with it is provided with outside mandrel, blanking outside diameter is less than section external diameter, blanking drill bit hollow part is connected with mandrel by bearing, blanking drill bit is connected with a hollow splicing sleeve coaxial with it, cannula end extends into transmission case, and sleeve pipe is connected with transmission case body by bearing; Transmission case is connected with by bearing the power transmission shaft that stretches into transmission case, power transmission shaft the inner is connected with a driving bevel gear, transmission case inner spindle is connected with mandrel driven bevel pinion, cannula end is connected with sleeve pipe driven bevel pinion, the number of teeth of sleeve pipe driven bevel pinion is greater than the number of teeth of mandrel driven bevel pinion, drives bevel gear to engage with sleeve pipe driven bevel pinion and mandrel driven bevel pinion respectively; Simple and compact for structure, be suitable for applying.
Description
Technical field
The utility model relates to a kind of coal-winning machine cutter, particularly a kind of double speed mining drill bit.
Background technology
Coal is one of main energy of China, the national economic development is played an important role, demand is huge, China's coal-mine exploitation career development is swift and violent, thus also bring the great development of equipment of mining, wherein coal-winning machine is exactly a key equipment, current coal-winning machine pattern is various, general is all by machine driving carry its tools, drilling is carried out to coal seam, coal cinder is peeled off come off, realize seam mining, so cutter plays vital effect to production efficiency, the large portion of existing cutter is all integral structure, need pierce coal seam during exploitation and promote comprehensively, by cutting lay separating with ore body in layer, because cutting lay is connected as one by intrinsic mineral and ore body in point aspect, when the mineral connected are comparatively hard and volume is larger, the detachment dynamic not only needed is large, easy damage equipment, also have after the connection mineral of monoblock are peeled off, bulk mineral also want further fragmentation, and remaining ore body face there will be pit, if around pit, quality is relatively more loose will cause landslide, serious meeting causes the accident, still await technological transformation.
Utility model content
In order to solve the problem, the utility model provides a kind of double speed mining drill bit, layer to be cut first can be separated and peel off.
The technical solution adopted in the utility model is: double speed mining drill bit, comprise transmission case and coaxial drill group, coaxial drill group is provided with a mandrel, mandrel front end is connected with the section of discoid band gear teeth, core back-end is fixed on mechanism housing through transmission case by bearing, a hollow blanking drill bit coaxial with it is provided with outside mandrel, blanking outside diameter is less than section external diameter, blanking drill bit hollow part is connected with mandrel by bearing, blanking drill bit is connected with a hollow splicing sleeve coaxial with it, cannula end extends into transmission case, sleeve pipe is connected with transmission case body by bearing, transmission case is connected with by bearing the power transmission shaft that stretches into transmission case, power transmission shaft the inner is connected with a driving bevel gear, transmission case inner spindle is connected with mandrel driven bevel pinion, cannula end is connected with sleeve pipe driven bevel pinion, the number of teeth of sleeve pipe driven bevel pinion is greater than the number of teeth of mandrel driven bevel pinion, drives bevel gear to engage with sleeve pipe driven bevel pinion and mandrel driven bevel pinion respectively, empty blanking bit face is provided with the fin of circumferential array, and rib top is provided with projection.
Further, described driving bevel gear respectively, sleeve pipe driven bevel pinion, mandrel driven bevel pinion be straight-tooth.
Further, described driving bevel gear respectively, sleeve pipe driven bevel pinion, mandrel driven bevel pinion be gear with helical teeth.
Further, different sized by described projection, cone post that protrusion direction is different.
Further, described core back-end is provided with a shaft-cup.
Further, the outer and mechanism housing of described power transmission shaft is connected with a flange.
Further, the number of teeth of described sleeve pipe driven bevel pinion is 2 to 6 times of the mandrel driven bevel pinion number of teeth.
Further, the number of teeth of described sleeve pipe driven bevel pinion is 3 times of the mandrel driven bevel pinion number of teeth.
Further, described fin is linear pattern or spirality.
Further, described slice thickness is 0.5 to 2 centimetre.
The utility model section diameter is greater than blanking drill bit, rotating speed of cutting into slices during work is greater than blanking drill bit, layer to be cut is first separated with ore body at a point aspect place by high-revolving section, is then peeled off by the cutting lay separated with ore body with slow-revving blanking drill bit, and remaining ore body face flat configuration is stable not easily occurs landslide phenomenon, the power demand of mask work process is stablized, equipment is not fragile, and the nugget peeled off is comparatively even, simple and compact for structure, usefulness is high, is suitable for applying.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model embodiment.
Fig. 2 is the sectional view of the utility model embodiment.
Fig. 3 is the blanking drill bit schematic diagram of the utility model embodiment.
Fig. 4 is the section schematic diagram of the utility model embodiment.
Accompanying drawing indicates title: 1 transmission case; 2 mandrels; 3 sections; 4,5,8,9,11,12 bearings; 6 shaft-cups; 7 blanking drill bits; 10 sleeve pipes; 13 power transmission shafts; 14 drive bevel gear; 15 mandrel driven bevel pinions; 16 sleeve pipe driven bevel pinions; 17 flanges; 18 fins; 19 is protruding.
Detailed description of the invention
The utility model embodiment as shown in Figure 1, this double speed mining drill bit is provided with transmission case 1 and coaxial drill group, coaxial drill group is provided with a mandrel 2, mandrel front end is connected with the section 3 of discoid band gear teeth, core back-end passes through bearing 4 through transmission case, 5 are fixed on mechanism housing, core back-end is provided with a shaft-cup 6, a hollow blanking drill bit 7 coaxial with it is provided with outside mandrel, blanking outside diameter is less than section external diameter, blanking drill bit hollow part is by bearing 8, 9 are connected with mandrel, blanking drill bit is connected with a hollow splicing sleeve 10 coaxial with it, cannula end extends into transmission case, sleeve pipe is connected with transmission case body by bearing 11, transmission case is connected with by bearing 12 power transmission shaft 13 that stretches into transmission case, power transmission shaft the inner is connected with a driving bevel gear 14, transmission case inner spindle is connected with mandrel driven bevel pinion 15, cannula end is connected with sleeve pipe driven bevel pinion 16, the number of teeth of sleeve pipe driven bevel pinion is greater than the number of teeth of mandrel driven bevel pinion, bevel gear is driven to engage with sleeve pipe driven bevel pinion and mandrel driven bevel pinion respectively, section and blanking drill bit is driven to press different rotating speeds work, outer and the mechanism housing of power transmission shaft is connected with a flange 17, and transmission case flange is connected with power source transferring arm, empty blanking bit face is provided with the fin 18 of circumferential array, and rib top is provided with protruding 19, the cone post different sized by projection, protrusion direction is different, can make to peel off nugget evenly, the number of teeth due to the utility model sleeve pipe driven bevel pinion is greater than the number of teeth of mandrel driven bevel pinion, so section rotating speed is greater than blanking drill bit during work, again because section diameter is greater than blanking drill bit, when being provided with work with must angle enter ore body, layer to be cut is separated with ore body at a point aspect place by high-revolving section before this, then the cutting lay separated with ore body peels off by slow-revving blanking drill bit, remaining ore body face flat configuration is stable not easily there is landslide phenomenon, the power demand of mask work process is stablized, equipment is not fragile, the nugget peeled off is more even, simple and compact for structure, usefulness is high, be suitable for applying.
Driving bevel gear in embodiment is respectively, sleeve pipe driven bevel pinion, mandrel driven bevel pinion be straight-tooth, drive during enforcement bevel gear respectively, sleeve pipe driven bevel pinion, mandrel driven bevel pinion also can be gear with helical teeth, drives more smooth; The number of teeth of embodiment middle sleeve driven bevel pinion is 3 times of the mandrel driven bevel pinion number of teeth, section rotating speed is 3 times of blanking drill bit, be applicable to cutting respectively and peel off, the number of teeth of sleeve pipe driven bevel pinion is that the multiple of the mandrel driven bevel pinion number of teeth also can be other quantity being greater than 1, is preferably 2 to 6 times; In embodiment, fin is spirality, the ore deposit of peeling off outwards can be dredged along the hand of spiral soon, also can adopt linear pattern during enforcement; Slice thickness can be selected in 0.5 to 2 centimetre; The utility model equipment not only may be used for the exploitation in colliery, also may be used for other similar mineral reserve.
Be only the utility model preferred embodiment in sum, all equivalence modifications of doing according to the application and prior art are added and are all considered as the utility model technology category.
Claims (8)
1. double speed mining drill bit, it is characterized in that, comprise transmission case (1) and coaxial drill group, coaxial drill group is provided with a mandrel (2), mandrel (2) front end is connected with the section (3) of discoid band gear teeth, mandrel (2) rear end is fixed on transmission case (1) housing through transmission case (1) by bearing, a hollow blanking drill bit (7) coaxial with it is provided with outside mandrel (2), blanking drill bit (7) external diameter is less than section (3) external diameter, blanking drill bit (7) hollow part is connected with mandrel (2) by bearing, blanking drill bit (7) is connected with a hollow splicing sleeve (10) coaxial with it, sleeve pipe (10) tail end extends into transmission case (1), sleeve pipe (10) is connected with transmission case (1) body by bearing, transmission case (1) is connected with by bearing the power transmission shaft (13) that stretches into transmission case (1), power transmission shaft (13) the inner is connected with a driving bevel gear (14), transmission case (1) inner spindle (2) is connected with mandrel driven bevel pinion (15), sleeve pipe (10) tail end is connected with sleeve pipe driven bevel pinion (16), the number of teeth of sleeve pipe driven bevel pinion (16) is greater than the number of teeth of mandrel driven bevel pinion (15), bevel gear (14) is driven to engage with sleeve pipe driven bevel pinion (16) and mandrel driven bevel pinion (15) respectively, empty blanking drill bit (7) surface is provided with the fin (18) of circumferential array, and rib top is provided with projection (19).
2. double speed mining drill bit according to claim 1, is characterized in that, the cone post different sized by described projection (19), protrusion direction is different.
3. double speed mining drill bit according to claim 1, is characterized in that, described mandrel (2) rear end is provided with a shaft-cup (6).
4. double speed mining drill bit according to claim 1, is characterized in that, described power transmission shaft (13) is connected with a flange (17) with transmission case (1) housing outward.
5. double speed mining drill bit according to claim 1, is characterized in that, the number of teeth of described sleeve pipe driven bevel pinion (16) is 2 to 6 times of mandrel driven bevel pinion (15) number of teeth.
6. double speed mining drill bit according to claim 5, is characterized in that, the number of teeth of described sleeve pipe driven bevel pinion (16) is 3 times of mandrel driven bevel pinion (15) number of teeth.
7. double speed mining drill bit according to claim 1, is characterized in that described fin (18) is for linear pattern or spirality.
8. double speed mining drill bit according to claim 1, is characterized in that, described section (3) thickness is 0.5 to 2 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420454567.1U CN204267030U (en) | 2014-08-13 | 2014-08-13 | Double speed mining drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420454567.1U CN204267030U (en) | 2014-08-13 | 2014-08-13 | Double speed mining drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267030U true CN204267030U (en) | 2015-04-15 |
Family
ID=52801902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420454567.1U Expired - Fee Related CN204267030U (en) | 2014-08-13 | 2014-08-13 | Double speed mining drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267030U (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 |
-
2014
- 2014-08-13 CN CN201420454567.1U patent/CN204267030U/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 |
|---|---|---|---|
| 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: 20150415 Termination date: 20150813 |
|
| EXPY | Termination of patent right or utility model |