CN206263308U - Large aperture multi-stage reducing drill hammer - Google Patents
Large aperture multi-stage reducing drill hammer Download PDFInfo
- Publication number
- CN206263308U CN206263308U CN201521083386.3U CN201521083386U CN206263308U CN 206263308 U CN206263308 U CN 206263308U CN 201521083386 U CN201521083386 U CN 201521083386U CN 206263308 U CN206263308 U CN 206263308U
- Authority
- CN
- China
- Prior art keywords
- drill hammer
- reducing
- diameter
- drill
- large aperture
- 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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Abstract
The utility model is related to one kind when large-diameter borehole is carried out to concrete, the impact drilling efficiency can be effectively improved, the large aperture multi-stage reducing drill hammer of required bore diameter can be rapidly achieved again, including drill hammer, the diameter of the drill hammer drilling rod becomes larger by initiating terminal, and the helical flute blade being distributed on reducing drilling rod is embedded with multistage expanding alloy head.Advantage：One is the drilling efficiency for being effectively improved impact drill, the quick reaming and the quick discharge of reaming waste material in the quick aperture up to needed for realizing；Two is saving of labor, laborsaving.
Description
Technical field
The utility model is related to one kind when large-diameter borehole is carried out to concrete, can effectively improve the impact drilling
Efficiency, can be rapidly achieved the large aperture multi-stage reducing drill hammer of required bore diameter, category impact head manufacture field again.
Background technology
CN1652910A, title " drill bit ", possess multiple blade parts for being configured at chisel edge and located at the blade part base
Hold side and in the shaft-like drill main body that pelmatozoa is formed on base end part；The blade part has by cutting face and flank
The cutting blade that commissura forward end pleurapophysis sets and formed, the cutting blade is configured to substantially radiate from bit central side to outside diameter
Shape；It carries out impact cutting using the composite move of spinning movement and the action of direction of principal axis, it is characterised in that the blade part
With at least 2 major cutting edge portions and it is disposed between the major cutting edge portion of circumferencial direction and major cutting edge portion, at least 2
Secondary blade part；The major cutting edge portion has as the major cutting edge of its cutting blade, and the major cutting edge is inner to be located at pivot, outer end
The outer rim of the rotational trajectory of blade part is then located at, the secondary blade part has as the secondary cutting blade of its cutting blade, in the secondary cutting blade
End be located at from rotation to external diameter lateral deviation from position, outer end is located at from the outer rim of the rotational trajectory of blade part to pivot
Lateral deviation from position.Its weak point：The drill bit only the head of drill bit is changed into radial drill bit by cone font alloy head,
But still the purpose of reducing big-diameter hole drilling cannot be realized.
Utility model content
Purpose of design：The weak point in background technology is avoided, design is a kind of when large-diameter borehole is carried out to concrete,
The impact drilling efficiency can be effectively improved, the large aperture multi-stage reducing impact drill of required bore diameter can be rapidly achieved again
Head.
Design：In order to realize above-mentioned purpose of design.The utility model in structure design, 1, drill hammer drilling rod
The design that diameter becomes larger by initiating terminal, is one of technical characteristic of the present utility model.So design purpose be：
When being drilled on concrete walls, if the diameter of drill bit is consistent with the diameter of required drilling, its drill bit is in drilling due to boring
The alloy head in head portion is big with the contact area of wall, eating during bit bore（Driving）Amount is small, and required impulsive force is big, efficiency
It is low；When drill bit is changed into expansion bit, drill bit drilling when due to the alloy head of drill bit head and the contact area of wall it is small,
Produced impulsive force is big, eating during bit bore（Driving）Amount is big, and is distributed in the expansion of reducing bar helical flute blade
The hole wall that footpath alloy head quickly can drill the former again expands, so as to be effectively improved drill bit efficiency.2nd, multiple alloy bits
Dislocation is embedded in the design of different varying diameter portion, is the two of technical characteristic of the present utility model.So design purpose be：Due to
From the beginning portion starts to be up progressively to become big reducing drilling rod, and the multiple expanding alloy bit of point facet difference varying diameter portion is due to being wrong
Position is embedded in different varying diameter portion, therefore during head drilling shaping, what the expanding alloy bit of reduced diameter portion was presented is few
Amount is eaten, quick reaming, and not only efficiency is very high, and is easy to operation, and the abrasion to expanding alloy bit is few.
Technical scheme：A kind of large aperture multi-stage reducing drill hammer, including drill hammer, the drill hammer drilling rod it is straight
Footpath becomes larger by initiating terminal, and the helical flute blade being distributed on reducing drilling rod is embedded with multistage expanding alloy head.
Compared with background technology, one is the drilling efficiency for being effectively improved impact drill to the utility model, quick up to realization
The quick reaming in required aperture and the quick discharge of reaming waste material；Two is saving of labor, laborsaving.
Brief description of the drawings
Fig. 1 is the structural representation of large aperture multi-stage reducing drill hammer.
Specific embodiment
Embodiment 1：Referring to the drawings 1.A kind of large aperture multi-stage reducing drill hammer, including drill hammer, drill hammer
Making is prior art, is not described herein herein.The diameter of the drill hammer drilling rod 5 becomes larger by initiating terminal, distribution
Helical flute blade on reducing drilling rod 5 is embedded with multistage expanding alloy head 1-4（Label 1 represents one-level reducing, the table of label 2
Show two grades of reducings, label 3 represents three-level reducing, and label 4 represents level Four reducing）.It is every in the multistage expanding alloy head 1 to 4
The expanding alloy head protuberance of one-level+expanding alloy head inlay diameter is equal to the reducing diameter of level where multi-stage reducing.It is described many
The expanding dislocation of alloy head 1 to 4 of level is embedded in helical flute blade.
It is to be understood that：The detailed word although above-described embodiment is contrasted to mentality of designing of the present utility model
Description, but these word descriptions, simply to the simple text description of the utility model mentality of designing, rather than new to this practicality
The limitation of type mentality of designing, any combination, increase or modification without departing from the utility model mentality of designing each falls within this practicality new
In the protection domain of type.
Claims (2)
1. a kind of large aperture multi-stage reducing drill hammer, including drill hammer, it is characterized in that：The drill hammer drilling rod（5）'s
Diameter becomes larger by initiating terminal, is distributed in reducing drilling rod（5）On helical flute blade be embedded with multistage expanding alloy
Head（1-4）；The multistage expanding alloy head（1-4）In the expanding alloy head protuberance of every one-level+expanding alloy head inlay it is straight
Footpath is equal to the reducing diameter of level where multi-stage reducing.
2. multi-stage reducing drill hammer in large aperture according to claim 1, it is characterized in that：The multistage expanding alloy head
（1-4）Dislocation is embedded in helical flute blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521083386.3U CN206263308U (en) | 2015-12-23 | 2015-12-23 | Large aperture multi-stage reducing drill hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521083386.3U CN206263308U (en) | 2015-12-23 | 2015-12-23 | Large aperture multi-stage reducing drill hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206263308U true CN206263308U (en) | 2017-06-20 |
Family
ID=59035512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521083386.3U Expired - Fee Related CN206263308U (en) | 2015-12-23 | 2015-12-23 | Large aperture multi-stage reducing drill hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206263308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274049A (en) * | 2018-01-19 | 2018-07-13 | 邓银 | A kind of large aperture blind hole opening bit |
-
2015
- 2015-12-23 CN CN201521083386.3U patent/CN206263308U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274049A (en) * | 2018-01-19 | 2018-07-13 | 邓银 | A kind of large aperture blind hole opening bit |
| CN108274049B (en) * | 2018-01-19 | 2019-04-19 | 浙江本优机械有限公司 | A kind of large aperture blind hole opening bit |
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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: 20170620 Termination date: 20201223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |