CN205778546U - A kind of impact hollow boring bit - Google Patents
A kind of impact hollow boring bit Download PDFInfo
- Publication number
- CN205778546U CN205778546U CN201620511099.6U CN201620511099U CN205778546U CN 205778546 U CN205778546 U CN 205778546U CN 201620511099 U CN201620511099 U CN 201620511099U CN 205778546 U CN205778546 U CN 205778546U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- wall thickness
- wall
- overcoat
- seam steel
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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 impact hollow boring bit, including the hollow drill bit cylinder that the wall thickness made without seam steel is 40mm, the described hollow drill bit cylinder top inner wall face that wall thickness is 40mm being used as without seam steel is installed by welding with the suspension ring reeved；The bottom outside wall surface welding of the described hollow drill bit cylinder that wall thickness is 40mm without seam steel work is set with 400mm length, and thickness is the steel plate overcoat of 60mm.This utility model is primarily adapted for use in reservoir dam reinforcement cut-pff wall grooving engineering drill hammer and is suitable for sand gravel layer and clay or cobble；Drilling efficiency is higher than general solid bit 12 times, and it makes simple, with low cost, during head abrasion, can repair its overcoat, convenient and swift, the stability bottom overcoat mainly increase on drill bit and deadweight.
Description
Technical field
This utility model relates to a kind of impact hollow boring bit.
Background technology
At present, in some engineerings of waterpower water power, when particularly rig works in groove, most drill bit all uses solid bit, and its drilling efficiency its major defect the most a height of, in consideration of it, invented this utility model.
Utility model content
This utility model purpose there are provided a kind of impact hollow boring bit, and this utility model is primarily adapted for use in reservoir dam reinforcement cut-pff wall grooving engineering drill hammer and is suitable for sand gravel layer and clay or cobble；Drilling efficiency is higher than general solid bit 1-2 times, and it makes simple, with low cost, during head abrasion, can repair its overcoat, convenient and swift, the stability bottom overcoat mainly increase on drill bit and deadweight.
In order to achieve the above object, the technical solution of the utility model is:
A kind of impact hollow boring bit, including the hollow drill bit cylinder that the wall thickness made without seam steel is 40mm, the described hollow drill bit cylinder top inner wall face that wall thickness is 40mm being used as without seam steel is installed by welding with the suspension ring reeved；The bottom outside wall surface welding of the described hollow drill bit cylinder that wall thickness is 40mm without seam steel work is set with 400mm length, and thickness is the steel plate overcoat of 60mm.
The beneficial effects of the utility model are: a kind of impact hollow boring bit of the present utility model, are primarily adapted for use in reservoir dam reinforcement cut-pff wall grooving engineering drill hammer and are suitable for sand gravel layer and clay or cobble；Drilling efficiency is higher than general solid bit 1-2 times, and it makes simple, with low cost, during head abrasion, can repair its overcoat, convenient and swift, the stability bottom overcoat mainly increase on drill bit and deadweight.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Embodiment 1
A kind of impact hollow boring bit of the present embodiment, as shown in Figure 1, including the hollow drill bit cylinder 1 that the wall thickness made without seam steel is 40mm, the described hollow drill bit cylinder 1 top inner wall face that wall thickness is 40mm being used as without seam steel is installed by welding with the suspension ring 2 reeved；The bottom outside wall surface welding of the described hollow drill bit cylinder 1 that wall thickness is 40mm without seam steel work is set with 400mm length, and thickness is the steel plate overcoat 3 of 60mm.
A kind of impact hollow boring bit of the present embodiment, is primarily adapted for use in reservoir dam reinforcement cut-pff wall grooving engineering drill hammer and is suitable for sand gravel layer and clay or cobble；Drilling efficiency is higher than general solid bit 1-2 times, and it makes simple, with low cost, during head abrasion, can repair its overcoat, convenient and swift, the stability bottom overcoat mainly increase on drill bit and deadweight.
Claims (1)
1. an impact hollow boring bit, it is characterized in that: include hollow drill bit cylinder (1) that wall thickness is 40mm made without seam steel, described hollow drill bit cylinder (1) the top inner wall face that wall thickness is 40mm being used as without seam steel is installed by welding with the suspension ring (2) reeved；The bottom outside wall surface welding of described hollow drill bit cylinder (1) that wall thickness is 40mm without seam steel work is set with 400mm length, and thickness is the steel plate overcoat (3) of 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620511099.6U CN205778546U (en) | 2016-05-31 | 2016-05-31 | A kind of impact hollow boring bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620511099.6U CN205778546U (en) | 2016-05-31 | 2016-05-31 | A kind of impact hollow boring bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778546U true CN205778546U (en) | 2016-12-07 |
Family
ID=58137654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620511099.6U Expired - Fee Related CN205778546U (en) | 2016-05-31 | 2016-05-31 | A kind of impact hollow boring bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554177A (en) * | 2021-02-22 | 2021-03-26 | 中铁九局集团第四工程有限公司 | Construction method of ultra-long small-diameter cast-in-situ bored pile |
-
2016
- 2016-05-31 CN CN201620511099.6U patent/CN205778546U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554177A (en) * | 2021-02-22 | 2021-03-26 | 中铁九局集团第四工程有限公司 | Construction method of ultra-long small-diameter cast-in-situ bored pile |
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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: 20161207 Termination date: 20180531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |