CN202799616U - Drill bit of earth boring machine - Google Patents
Drill bit of earth boring machine Download PDFInfo
- Publication number
- CN202799616U CN202799616U CN 201220495485 CN201220495485U CN202799616U CN 202799616 U CN202799616 U CN 202799616U CN 201220495485 CN201220495485 CN 201220495485 CN 201220495485 U CN201220495485 U CN 201220495485U CN 202799616 U CN202799616 U CN 202799616U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- cone
- spiral
- poker
- needle point
- 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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- Earth Drilling (AREA)
Abstract
The utility model discloses a drill bit of an earth boring machine. A spiral auger which in a shape of an inverted cone is fixedly arranged on the outer surface of the drill bit; the drill bit comprises a boring shaft and a needle tip which is arranged at the lower end of the boring shaft; and the conical degree of the cone-shaped spiral auger on the needle tip is bigger than that of the cone-shaped spiral auger on the boring shaft. Compared with the cylindrical drill bit, the drill bit provided by the utility model adopts the cone-shaped spiral auger not only has small earth boring resistance, but also can be quickly earthed. Besides, earth around the formed tree pit can not collapse easily.
Description
Technical field
The invention belongs to the agriculture and forestry machinery field, be specifically related to a kind of hole digger drill bit.
Background technology
In order to preserve the ecological environment, improve the earth air quality that people depend on for existence, best bet improves forest coverage exactly, improves the afforestation coverage rate in the urban construction, and therefore afforestation is human obligation.
At present most afforestation all is to dig pit in a kind tree by the artificial spade that adopts, and this mode labour intensity is large, and production efficiency is low.The hole digger that also has the mechanization afforestation of a part, what but the drill bit of existing hole digger adopted is the spiral digging axis of column type, resistance was large when such drill bit existence was buried, cylindrical after the heatable adobe sleeping platform moulding, the earth of heatable adobe sleeping platform periphery subsides easily, affect the quality of digging pit, further caused the manufacturing schedule of planting trees later.
The utility model content
The soil-entering resistance that exists for existing cylindrical hole digger drill bit is large, givey technological deficiency after heatable adobe sleeping platform is shaped, and the utility model provides a kind of employing tapered auger hole digger drill bit, and it is stable that soil-entering resistance is little, heatable adobe sleeping platform is shaped.
The utility model adopts following technical scheme to realize: a kind of hole digger drill bit is installed with the spiral-poker that is back taper at described drill bit outer surface.
Described drill bit comprises digging axis and is arranged on the needle point of digging axis lower end.
The tapering of the cone-type spiral screw feeder that arranges on the described needle point is greater than the tapering of the cone-type spiral screw feeder that arranges on the described digging axis.
Described spiral-poker is fixed by welding on the described drill bit.
What the utility model adopted is coniform spiral-poker, compares existing cylindrical drill, and not only soil-entering resistance is little, and can be unearthed fast, and the soil around the tree well of shaping also is difficult for collapsing.
Description of drawings
Fig. 1 is the utility model structural representation.
Number in the figure: 1-digging axis, 2-digging axis spiral-poker, 3-needle point spiral-poker, 4-needle point.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Embodiment
Referring to Fig. 1, the hole digger drill bit comprises digging axis 1 and is arranged on the needle point 4 of digging axis 1 lower end.Weld respectively at the outer surface of digging axis 1 and needle point 4 and to be installed with digging axis spiral-poker 2 and needle point spiral-poker 3, digging axis spiral-poker 2 and needle point spiral-poker 3 are linked to be a spiral-poker that integral body is continuous, be the back taper setting, and the tapering of the needle point spiral-poker 3 that arranges on the needle point 4 is greater than the tapering of the digging axis spiral-poker 2 that arranges on the digging axis 1.
After hole digger started, the digging axis 1 that engine drives on the drill bit rotated, and when hole digger was down digged pit, needle point 4 rotations of digging axis 1 lower end were also down bored the hole, because needle point spiral-poker 3 rotations on the needle point 4, thereby so that drill bit down bores the hole fast; Under the work of the digging axis spiral-poker 2 on the digging axis 1 and the needle point spiral-poker 3 on the needle point 4, so that down getting out the hole of desired depth fast, comes on drill bit.Adopt the inverted cone-shaped spiral-poker, not only soil-entering resistance is little, and can be unearthed fast, and the soil around the tree well that gets out also is difficult for collapsing, and has guaranteed the quality of tree well.
Claims (4)
1. a hole digger drill bit is characterized in that: be installed with the spiral-poker that is back taper at described drill bit outer surface.
2. a kind of hole digger drill bit according to claim 1 is characterized in that: described drill bit comprises digging axis and is arranged on the needle point of digging axis lower end.
3. a kind of hole digger drill bit according to claim 2, it is characterized in that: the tapering of the cone-type spiral screw feeder that arranges on the described needle point is greater than the tapering of the cone-type spiral screw feeder that arranges on the described digging axis.
4. a kind of hole digger drill bit according to claim 3, it is characterized in that: described spiral-poker is fixed by welding on the described drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220495485 CN202799616U (en) | 2012-09-26 | 2012-09-26 | Drill bit of earth boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220495485 CN202799616U (en) | 2012-09-26 | 2012-09-26 | Drill bit of earth boring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202799616U true CN202799616U (en) | 2013-03-20 |
Family
ID=47858582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220495485 Expired - Fee Related CN202799616U (en) | 2012-09-26 | 2012-09-26 | Drill bit of earth boring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202799616U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104584716A (en) * | 2015-02-09 | 2015-05-06 | 李阳铭 | Spiral bit capable of conveniently drilling into soil of deep scarification cultivation machine |
| CN110122009A (en) * | 2019-03-26 | 2019-08-16 | 蒋淑娇 | Kind and planting unit are cut for the automatic sugarcane of hilly and mountainous land |
| CN110593764A (en) * | 2019-09-26 | 2019-12-20 | 广西电网有限责任公司贵港供电局 | Reducing drill bit device and pit digging equipment |
-
2012
- 2012-09-26 CN CN 201220495485 patent/CN202799616U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104584716A (en) * | 2015-02-09 | 2015-05-06 | 李阳铭 | Spiral bit capable of conveniently drilling into soil of deep scarification cultivation machine |
| CN110122009A (en) * | 2019-03-26 | 2019-08-16 | 蒋淑娇 | Kind and planting unit are cut for the automatic sugarcane of hilly and mountainous land |
| CN110593764A (en) * | 2019-09-26 | 2019-12-20 | 广西电网有限责任公司贵港供电局 | Reducing drill bit device and pit digging equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130926 |