CN202338204U - Directional spiral bit special for gravel soil - Google Patents
Directional spiral bit special for gravel soil Download PDFInfo
- Publication number
- CN202338204U CN202338204U CN2011204041892U CN201120404189U CN202338204U CN 202338204 U CN202338204 U CN 202338204U CN 2011204041892 U CN2011204041892 U CN 2011204041892U CN 201120404189 U CN201120404189 U CN 201120404189U CN 202338204 U CN202338204 U CN 202338204U
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- CN
- China
- Prior art keywords
- block
- drill bit
- recessed
- gravel soil
- bit
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- Expired - Lifetime
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Abstract
The utility model discloses a directional spiral bit special for gravel soil. The directional spiral bit is a block in a shape of a circular truncated cone, wherein an upper end face of the block is small, and a lower end face of the block is large; a counter bore of which an opening is formed in the lower end face is formed in an axial central area of the block; a plurality of recesses which are distributed spirally from top to bottom are formed on the side face of the block along the axial direction; a plurality of water holes which are communicated with the counter bore are formed in each recess; a plurality of quadrangular cut teeth are arranged between the two adjacent recesses on the side face of the block and distributed spirally from top to bottom; and a plurality of water holes which are formed in each recess are distributed spirally from top to bottom. Under the condition that a drilling machine is not changed, drilling resistance can be reduced, and the abrasion resistance and drilling efficiency of the bit in the gravel soil are improved. The directional spiral bit is the block in a shape of the circular truncated cone, so the bit has a hole-expanding function. Water which is sprayed from the water holes in the recesses can well protect an inner wall of a gravel soil pipeline.
Description
Technical field
The utility model relates to the special-purpose directed augers of a kind of conglomerate soil.
Background technology
Conglomerate soil is distributed widely in all parts of the country, and it is a kind of Special Rock between sand and decayed rock.Conglomerate soil has the hardness height, is out of shape characteristics such as little and glutinous grain content is low, therefore, and highway subgrade and the building construction natural ground done commonly used.When layer is realized fast and efficiently directed trenchless technology in the conglomerate soil, require drill bit to have intensity height, drilling process and be prone to form characteristics such as mud and rate of penetration be fast.
Existing all kinds of drill bit comprises: the directed non-excavation drill bit of wing, the non-excavation drill bit of shaft-like orientation, the directed non-excavation drill bit of sealing calabash shape, the directed non-excavation drill bit of gear wheel and they combined etc., and all inapplicable in conglomerate soil, inefficiency.
The utility model content
The technical problem that the utility model will solve provides the special-purpose directed augers of a kind of conglomerate soil, requires this drill bit under the situation that does not change rig, can reduce to creep into resistance, improves anti-wear performance and the drilling efficiency of drill bit in conglomerate soil.
For solving the problems of the technologies described above; The utility model provides a kind of conglomerate soil special-purpose directed augers; It is the round table-like block that a upper surface is little, the lower surface is big, and there is the counterbore that is opened on the lower surface in the axial centre zone of block, and the side of block has the recessed of some helix shape from top to bottom vertically; Some water holes that communicate with counterbore all are set in each is recessed; Locate to be provided with some cuttings between recessed between adjacent two on the side of block, cutting be shaped as quadrangle, be the from top to down helix shape between adjacent two some cuttings of locating between recessed.
Said each recessed interior some water hole that are arranged on are the from top to down helix shape.
For the purpose of the concise description problem, below the special-purpose directed augers of the utility model conglomerate soil is all abbreviated as this drill bit.
Cutting is applicable to conglomerate soil, has good cutting function; Because the cutting of this drill bit is a quadrangle; And cutting is the from top to down helix shape, in the process of drill bit high speed rotary drilling, can make the resistance of this drill bit in drilling process significantly reduce; The water that eject in the water hole that communicates with counterbore that cooperates recessed spiral to arrange; Make mud be easy to flow and the cooling of drill bit and self-cleaning, improved anti-wear performance and the drilling efficiency of drill bit in conglomerate soil, drill bit to pass through the obstacle ability strong.
Therefore, this drill bit can reduce to creep into resistance under the situation that does not change rig, improves the anti-wear performance and the drilling efficiency of drill bit in conglomerate soil.
Because this drill bit is the round table-like block that the upper surface is little, the lower surface is big, makes this drill bit have the reaming function concurrently.The water that eject in water hole in recessed also has good effect to protection conglomerate soil inner-walls of duct.
Description of drawings
Fig. 1 is this drill bit structure sketch map.
The specific embodiment
Further specify the utility model below in conjunction with accompanying drawing and through embodiment.
Embodiment
Referring to Fig. 1: this drill bit is the round table-like block that a upper surface is little, the lower surface is big; There is the counterbore 1 that is opened on the lower surface in the axial centre zone of block; The side of block have vertically equally distributed three roads from top to bottom helix shape recessed 2; Each all is provided with the water hole 21 of six helix shape from top to bottom that communicate with counterbore 1 in recessed 2, between every adjacent two recessed 2, locates all to be provided with five quadrangle cuttings 3 of helix shape from top to bottom on the side of block.
This drill bit is connected rig, and counterbore 1 connection water route can be used.At drill bit at a high speed rotatably in the drilling process; The quadrangle cutting 3 of helix shape from top to bottom makes the resistance of this drill bit in drilling process significantly reduce; Cooperate recessed 2 spiral that arrange with water hole 21 that counterbore 1 communicates in the water that ejects; Make mud be easy to flow and the cooling of drill bit and self-cleaning, improved anti-wear performance and the drilling efficiency of drill bit in conglomerate soil, drill bit to pass through the obstacle ability strong.
Because this drill bit is the round table-like block that the upper surface is little, the lower surface is big, makes this drill bit have the reaming function concurrently.The water that eject in water hole 21 in recessed 2 also has good effect to protection conglomerate soil inner-walls of duct.
Above-described only is a kind of embodiment of the utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make conspicuous some conversion or alternative and remodeling, these also should be regarded as belonging to the protection domain of the utility model.
Claims (2)
1. the special-purpose directed augers of conglomerate soil; It is the round table-like block that a upper surface is little, the lower surface is big; There is the counterbore that is opened on the lower surface in the axial centre zone of block; The side of block has the recessed of some helix shape from top to bottom vertically, and some water holes that communicate with counterbore all are set in each is recessed, locates to be provided with some cuttings between adjacent two between recessed on the side of block; It is characterized in that: cutting be shaped as quadrangle, be the from top to down helix shape between adjacent two some cuttings of locating between recessed.
2. the special-purpose directed augers of conglomerate soil according to claim 1 is characterized in that: be arranged on each recessed interior some water hole and be the from top to down helix shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204041892U CN202338204U (en) | 2011-10-21 | 2011-10-21 | Directional spiral bit special for gravel soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204041892U CN202338204U (en) | 2011-10-21 | 2011-10-21 | Directional spiral bit special for gravel soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338204U true CN202338204U (en) | 2012-07-18 |
Family
ID=46486897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204041892U Expired - Lifetime CN202338204U (en) | 2011-10-21 | 2011-10-21 | Directional spiral bit special for gravel soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338204U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178872A (en) * | 2015-09-09 | 2015-12-23 | 长江大学 | Mechanical auxiliary device used for improving bit pressure |
| CN110280811A (en) * | 2019-07-01 | 2019-09-27 | 岳庆峰 | The method of whole full consumption self-compensating type way-type drilling unit |
| CN110280812A (en) * | 2019-07-01 | 2019-09-27 | 岳庆峰 | Whole full consumption self-compensating type way-type drilling unit |
-
2011
- 2011-10-21 CN CN2011204041892U patent/CN202338204U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178872A (en) * | 2015-09-09 | 2015-12-23 | 长江大学 | Mechanical auxiliary device used for improving bit pressure |
| CN110280811A (en) * | 2019-07-01 | 2019-09-27 | 岳庆峰 | The method of whole full consumption self-compensating type way-type drilling unit |
| CN110280812A (en) * | 2019-07-01 | 2019-09-27 | 岳庆峰 | Whole full consumption self-compensating type way-type drilling unit |
| CN110280811B (en) * | 2019-07-01 | 2020-09-11 | 河北锐石钻头制造有限公司 | Method for manufacturing integral full-consumption self-compensation type combined drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190624 Address after: 233010 No. 5183 Donghai Avenue, Bengbu City, Anhui Province Patentee after: Anhui Water Resources Development Co., Ltd. Address before: 233010 South of Zhanggongshan Road, Donghai Avenue, Bengbu City, Anhui Province Patentee before: Anhui Water Resources Development Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120718 |
|
| CX01 | Expiry of patent term |