CN209158288U - A kind of drilling formula variable diameter sizing drill hammer - Google Patents
A kind of drilling formula variable diameter sizing drill hammer Download PDFInfo
- Publication number
- CN209158288U CN209158288U CN201821916192.0U CN201821916192U CN209158288U CN 209158288 U CN209158288 U CN 209158288U CN 201821916192 U CN201821916192 U CN 201821916192U CN 209158288 U CN209158288 U CN 209158288U
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- China
- Prior art keywords
- diameter
- drilling rod
- rod shaft
- drilling
- head
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Abstract
Both there is drilling function the utility model relates to a kind of, the drilling formula variable diameter sizing drill hammer that there is reaming again, determine hole aperture function, including drill hammer, boring bar head is embedded with alloy bit, and drilling rod shaft cuts portion by variable diameter from bottom to top and the sizing portion of cutting is constituted；The alloy bit diameter is greater than drilling rod shaft diameter；Interruption is gradually increased from bottom to top embedded in the diameter for the cutter tip that drilling rod shaft variable diameter cuts portion；The sizing portion of cutting from bottom to top by be interrupted cut on the drilling rod shaft head constitute and cut head diameter it is identical.Advantage: first is that having started drill hammer hole structure, sinker bar intensity is enhanced；Second is that keeping hole wall more smooth, borehole accuracy is higher, more efficient using expanding mode pore-forming is cut.
Description
Technical field
Not only there is drilling function, but also the drilling formula variable diameter for having reaming, determining hole aperture function the utility model relates to a kind of
Sizing drill hammer belongs to drill hammer manufacturing field.
Background technique
All first patent CN206066363U of the applicant, title " second level variable diameter drill hammer ", including impact drill
Head, it is characterized in that: the diameter of the drill hammer drilling rod becomes larger by starting point, the spiral being distributed on variable diameter drilling rod
Chip space blade is embedded with expanding alloy head.
Summary of the invention
Purpose of design: on the basis of in the introduction, designing one kind not only has drilling function, but also has reaming, determines hole
The drilling formula variable diameter sizing drill hammer of aperture function.
Design scheme: in order to realize above-mentioned purpose of design.In structure design, boring bar head is embedded with alloy to the utility model
Drill bit and drilling rod shaft cuts the design that portion and the sizing portion of cutting are constituted by variable diameter from bottom to top, is the main skill of the utility model
Art feature.The purpose of this design is: drilling rod shaft is without opening spiral shell since alloy bit is on the shaft of drilling rod
Chip space is revolved, and then improves the intensity of drilling rod shaft；Secondly as varying diameter portion is from bottom to top gradually expanded and embedded in drilling rod
Alloy cutting head on shaft can cut the hole wall that alloy bit drills out under the drive of impact drill, expand it gradually
Cut sizing (aperture) greatly and by sizing cutting portion；Third is that due to the cutter tip that is located on drilling rod shaft from and and it is upper between abscission ring
To distribution, the spacing between cutter tip and cutter tip then constitutes drilling cuttings, passage of cuttings, which can be quick
Drilling cuttings, chip material are discharged on ground.
Technical solution: a kind of drilling formula variable diameter sizing drill hammer, including drill hammer, boring bar head are bored embedded with alloy
Head, drilling rod shaft cuts portion by variable diameter from bottom to top and the sizing portion of cutting is constituted；The alloy bit diameter is greater than drilling rod shaft
Diameter；Interruption is gradually increased from bottom to top embedded in the diameter for the cutter tip that drilling rod shaft variable diameter cuts portion；The sizing portion of cutting is certainly
It is lower and it is upper be embedded in by interruption cut on drilling rod shaft head constitute and cut head diameter it is identical.
The utility model compared with the background art, first is that having started drill hammer hole structure, it is strong to enhance sinker bar
Degree；Second is that keeping hole wall more smooth, borehole accuracy is higher, more efficient using expanding mode pore-forming is cut.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of drilling formula variable diameter sizing drill hammer.
Specific embodiment
Embodiment 1: referring to attached drawing 1.A kind of drilling formula variable diameter sizing drill hammer, including drill hammer 4, boring bar head is embedding
There is alloy bit 1, drilling rod shaft cuts portion 2 by variable diameter from bottom to top and sizing cuts portion 3 and constitutes；1 diameter of alloy bit
Greater than drilling rod shaft diameter；Interruption is gradually increased from bottom to top embedded in the diameter for the cutter tip that drilling rod shaft variable diameter cuts portion 2；
Sizing cut portion 3 from bottom to top by be interrupted cut on the drilling rod shaft head constitute and cut head diameter it is identical.Variable diameter is cut
The diameter of the cutter tip in portion 2 refers to the circumferential height and drilling rod shaft that cut head and stretch out drilling rod shaft on drilling rod shaft
The sum of diameter.The diameter that sizing cuts the cutter tip in portion 3 refers to that the circumferential head that cuts on drilling rod shaft stretches out drilling rod bar
The sum of the height of body and drilling rod shaft diameter.
It is to be understood that: although above-described embodiment contrasts detailed text to the mentality of designing of the utility model
Description, but these verbal descriptions only describe the simple text of the utility model mentality of designing, rather than practical new to this
It is practical new to each fall within this for the limitation of type mentality of designing, any combination, increase or modification without departing from the utility model mentality of designing
In the protection scope of type.
Claims (3)
1. a kind of drilling formula variable diameter sizing drill hammer, including drill hammer (4), it is characterized in that: boring bar head is bored embedded with alloy
Head (1), drilling rod shaft cuts portion (2) by variable diameter from bottom to top and sizing cuts portion (3) and constitutes；Alloy bit (1) diameter
Greater than drilling rod shaft diameter；Interruption gradually increases from bottom to top embedded in the diameter for the cutter tip that drilling rod shaft variable diameter cuts portion (2)
Greatly；Sizing cut portion (3) from bottom to top by be interrupted cut on the drilling rod shaft head constitute and cut head diameter it is identical.
2. drilling formula variable diameter sizing drill hammer according to claim 1, it is characterized in that: variable diameter cuts the cutting of portion (2)
The diameter of cutter head refers to that the circumferential head that cuts on drilling rod shaft stretches out the sum of height and drilling rod shaft diameter of drilling rod shaft.
3. drilling formula variable diameter sizing drill hammer according to claim 1, it is characterized in that: sizing cuts the cutting of portion (3)
The diameter of cutter head refers to that the circumferential head that cuts on drilling rod shaft stretches out the sum of height and drilling rod shaft diameter of drilling rod shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916192.0U CN209158288U (en) | 2018-11-21 | 2018-11-21 | A kind of drilling formula variable diameter sizing drill hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916192.0U CN209158288U (en) | 2018-11-21 | 2018-11-21 | A kind of drilling formula variable diameter sizing drill hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209158288U true CN209158288U (en) | 2019-07-26 |
Family
ID=67339201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821916192.0U Expired - Fee Related CN209158288U (en) | 2018-11-21 | 2018-11-21 | A kind of drilling formula variable diameter sizing drill hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209158288U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110521534A (en) * | 2019-09-30 | 2019-12-03 | 中南林业科技大学 | A kind of set of blades rotary drill and Portable rotating drilling machine and butt breaking method |
-
2018
- 2018-11-21 CN CN201821916192.0U patent/CN209158288U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110521534A (en) * | 2019-09-30 | 2019-12-03 | 中南林业科技大学 | A kind of set of blades rotary drill and Portable rotating drilling machine and butt breaking method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190726 Termination date: 20211121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |