CN203978326U - Button type high efficiency of transmission helical blade - Google Patents
Button type high efficiency of transmission helical blade Download PDFInfo
- Publication number
- CN203978326U CN203978326U CN201420146806.7U CN201420146806U CN203978326U CN 203978326 U CN203978326 U CN 203978326U CN 201420146806 U CN201420146806 U CN 201420146806U CN 203978326 U CN203978326 U CN 203978326U
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- Prior art keywords
- helical blade
- high efficiency
- type high
- button type
- utility
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Abstract
The utility model discloses a kind of button type high efficiency of transmission helical blade, comprise helical blade (2), on the defeated coal face of helical blade (1), be provided with equally distributed salient point (1).The utility model improves existing helical blade, by increasing the friction factor of helical blade, thereby improves the defeated coal rate of auger stem, makes the drilling efficiency of auger stem obtain raising.Remodeling method of the present utility model and reconstruction structure are simple, with low cost, and result of use is good.
Description
Technical field
The utility model relates to mechanical field, especially a kind of button type high efficiency of transmission helical blade.
Background technology
Gas pre-drainage is the fundamental measure of control coal mine gas disaster accident, and it is the basic means of gas pre-drainage that boring is taken out in advance, and at present, in gas pre-drainage boring, adopting is spiral drilling technology widely.All to utilize motor, by pumping plant, power is passed to unit head now, reach combined drill through auger stem, along with unit head is along frame forward impelling, drill bit cutting coal petrography produces ickings, ickings the centrifugal force of the auger stem of rotation and with interlobate frictional force comprehensive function under be excluded outside hole.Spiral drilling efficiency depends on the efficiency of the conveying ickings of auger stem, and the defeated coal rate of auger stem is higher, and spiral drilling efficiency is higher.How improving the defeated coal rate of auger stem is a current difficult problem.
Summary of the invention
The purpose of this utility model is: a kind of button type high efficiency of transmission helical blade is provided, and it can effectively improve into the conveying effect that effectively improves ickings in brill process, and simple, with low cost.
The utility model is achieved in that button type high efficiency of transmission helical blade, comprises helical blade, on the defeated coal face of helical blade, is provided with equally distributed salient point.
Described salient point is cylindrical shape, and height is 1-3mm, and end radius of circle is 0.2-0.8mm, double regularly arranged along the base helix of helical blade, and the vertical interval distance of two adjacent salient point bottoms is 10-20mm.
In order to verify experiment effect of the present utility model, conventional drilling rod and the utility model are contrasted, it is 6.3Kg that ickings amount is discharged in one of the every precession of conventional drilling rod, it is 10.5Kg that ickings amount is got rid of in one of the every precession of drilling rod of the present utility model.Visible, adopt when the utility model, get rid of ickings amount and improved and exceed 40%.
Owing to having adopted technique scheme, compared with prior art, the utility model improves existing helical blade, by increasing the friction factor of helical blade, thereby improves the defeated coal rate of auger stem, makes the drilling efficiency of auger stem obtain raising.Remodeling method of the present utility model and reconstruction structure are simple, with low cost, and result of use is good.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model.
Detailed description of the invention
Embodiment of the present utility model: the structure of button type high efficiency of transmission helical blade as shown in Figure 1, comprise helical blade 2, on the defeated coal face of helical blade 1, be provided with equally distributed salient point 1, salient point 1 is cylindrical shape, height is 2mm, end radius of circle is 0.5mm, double regularly arranged along the base helix of helical blade 2, and the vertical interval distance of two adjacent salient point 1 bottoms is 15mm.
The present embodiment during fabrication, is first welded on salient point 1 on band steel, then adopts Wrapping formed technology or single-piece it by punch and weld technology that the band steel that is welded with salient point 1 is caused to helical blade 2.
Claims (2)
1. a button type high efficiency of transmission helical blade, comprises helical blade (2), it is characterized in that: on the defeated coal face of helical blade (1), be provided with equally distributed salient point (1).
2. button type high efficiency of transmission helical blade according to claim 1, it is characterized in that: described salient point (1) is cylindrical shape, height is 1-3mm, end radius of circle is 0.2-0.8mm, base helix along helical blade (2) is double regularly arranged, and the vertical interval distance of adjacent two salient points (1) bottom is 10-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420146806.7U CN203978326U (en) | 2014-03-29 | 2014-03-29 | Button type high efficiency of transmission helical blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420146806.7U CN203978326U (en) | 2014-03-29 | 2014-03-29 | Button type high efficiency of transmission helical blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203978326U true CN203978326U (en) | 2014-12-03 |
Family
ID=51975785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420146806.7U Expired - Fee Related CN203978326U (en) | 2014-03-29 | 2014-03-29 | Button type high efficiency of transmission helical blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203978326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867138A (en) * | 2014-03-29 | 2014-06-18 | 贵州大学 | Method and structure for improving coal conveying efficiency of auger stem |
-
2014
- 2014-03-29 CN CN201420146806.7U patent/CN203978326U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867138A (en) * | 2014-03-29 | 2014-06-18 | 贵州大学 | Method and structure for improving coal conveying efficiency of auger stem |
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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: 20141203 Termination date: 20170329 |