CN2890317Y - Improved shaft bar - Google Patents
Improved shaft bar Download PDFInfo
- Publication number
- CN2890317Y CN2890317Y CN 200620084253 CN200620084253U CN2890317Y CN 2890317 Y CN2890317 Y CN 2890317Y CN 200620084253 CN200620084253 CN 200620084253 CN 200620084253 U CN200620084253 U CN 200620084253U CN 2890317 Y CN2890317 Y CN 2890317Y
- Authority
- CN
- China
- Prior art keywords
- shaft
- utility
- model
- drill steel
- pricker
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 abstract description 4
- 241000125205 Anethum Species 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model is an improved shaft bar belonging to drill tool field, which comprises a shaft pin, a shaft, a shaft collar and a shaft tail. The utility model is characterized in that edge-shaped design is adopted to the shaft pin; and a conical depression is arranged on the bottom of the shaft tail corresponding with the edge-shaped design. The taper connection between the drill rod and the shaft, and the drill rod and the dill shaft are realized, which effectively enhance the connection strength. The utility model has the advantages of compact combination, long service life, large radial distortion distance force, simple structure, convenient processing and raw materials saving. Meanwhile, the utility model increases powder discharge area so that powder discharge is smooth and easy.
Description
Technical field
The utility model belongs to the drilling tool field, particularly a kind of improved drill steel that cooperates with the bore bit body.
Background technology
The bore bit body cooperates with drill steel and constitutes drilling tool, be widely used in cut into a mountain, fields such as rock drilling, mining.Present drill steel interconnects or when being connected with the bore bit body, generally adopts circular connected mode, and along with the constantly bringing forth new ideas and popularizing of the efficient hammer drill of heavy type, the power of hammer drill is increasing, requires its supporting drill steel that bigger holding capacity will be arranged.Though drill steel all has strict demand from many technologies such as selection, system pricker and heat treatments, not firm phenomenon usually occurs connecting in the junction, influences the normal use of drill steel.Simultaneously circular the connection causes that radially torsional forces is little, is not suitable for the use of high-power hammer drill.
Summary of the invention
The purpose of this utility model is to provide a kind of improved drill steel that connects shape that changed.
The utility model is achieved in that
Improved drill steel, pricker pin, pricker body, shank collar and bit shank are formed, and it is characterized in that: above-mentioned pricker pin adopts the prism shape design, and the bit shank bottom has the awl cave of corresponding prism shape.
After the utility model adopts said structure, adopt the tapering of regular polygon to be connected between drill steel and the drill steel and between drill steel and the bore bit body, effectively improved bonding strength, the two cooperates firmly, in conjunction with tight, long service life, radially torque is big, has effect simple in structure, easy to process, that save material.Strengthened row's powder area simultaneously, row's powder smoothness, easy to use.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model, and Fig. 2 is the right view of Fig. 1, and Fig. 3 is the left view of Fig. 1, and Fig. 4-9 is the pricker latch structure schematic diagram of the different prism shape structures of the utility model.
In the accompanying drawing, 1 is that pricker pin, 2 is that pricker body, 3 is that shank collar, 4 is that bit shank, 5 is the awl cave.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
As shown in Figure 1, the utility model is a kind of improved drill steel, is made up of pricker pin 1, pricker body 2, shank collar 3 and bit shank 4.As shown in Figure 2, pricker pin 1 is designed to have the regular polygon of tapering; When cooperating with the bore bit body, the tapering pricker pin 1 of regular polygon penetrates the bottom of bore bit body, forms drilling tool.As shown in Figure 3, have the awl cave 5 of corresponding regular polygon in the bottom of bit shank 4; When drill steel interconnected, the tapering pricker pin 1 of regular polygon penetrated in the awl cave 5 of another root drill steel bottom, connected and used.The regular polygon design that has tapering has effectively improved the fastness of combination, has increased the radially torque of drill steel simultaneously.
Fig. 4-9 is depicted as the pricker pin 1 of different regular polygons, and the seamed edge number of regular polygon is advisable with 3-12.Corresponding regular polygon is adopted in the awl cave 5 at bit shank 4 places.Regular polygon pricker pin 1 and can adopt corresponding positive triangle, square, regular pentagon to dodecagon etc.Above-mentioned awl cave 5 connected modes can effectively guarantee between drill steel and the drill steel and with the bore bit body between the fastness that cooperates.
Claims (3)
1, improved drill steel, pricker pin (1), pricker body (2), shank collar (3) and bit shank (4) are formed, and it is characterized in that: above-mentioned pricker pin (1) adopts the prism shape design, and bit shank (4) bottom has the awl cave (5) of corresponding prism shape.
2, drill steel according to claim 1 is characterized in that: above-mentioned prism shape adopts the regular polygon that has tapering.
3, drill steel according to claim 1 and 2 is characterized in that: the seamed edge number of above-mentioned prism shape is the 3-12 bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620084253 CN2890317Y (en) | 2006-05-16 | 2006-05-16 | Improved shaft bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620084253 CN2890317Y (en) | 2006-05-16 | 2006-05-16 | Improved shaft bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2890317Y true CN2890317Y (en) | 2007-04-18 |
Family
ID=38020975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620084253 Expired - Fee Related CN2890317Y (en) | 2006-05-16 | 2006-05-16 | Improved shaft bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2890317Y (en) |
-
2006
- 2006-05-16 CN CN 200620084253 patent/CN2890317Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202591742U (en) | Reverse chamfer cutter | |
| CN2890317Y (en) | Improved shaft bar | |
| CN213297838U (en) | High-efficient drill point of carbide drill bit | |
| CN2890315Y (en) | Improved bore bit | |
| CN2929144Y (en) | Novel drill rod | |
| CN101767176A (en) | Riveting method with blind hole | |
| CN201495990U (en) | Construction pile driver drill bit | |
| CN201180503Y (en) | Drill rod | |
| CN2863330Y (en) | High-speed steel perforated equipment | |
| CN202954742U (en) | Spike bit | |
| CN201896833U (en) | Dodecagonal high strength flexible bolt | |
| CN206663131U (en) | Supporting new construction screw extractor step drill | |
| CN201895118U (en) | Center drill | |
| CN200999593Y (en) | High carcass stop-off strip diamond impregnated bit makedrill | |
| CN201807769U (en) | Drill bit | |
| CN200991965Y (en) | Perforator | |
| CN202954743U (en) | Down-the-hole drill bit | |
| CN201025821Y (en) | Integrated impeller of oxygen increasing machine | |
| CN200961447Y (en) | Taper connection drill rod | |
| CN211666710U (en) | Hexagonal prism-shaped cutting pick of rock roadway fully-mechanized excavating machine | |
| CN202090838U (en) | Drill bit of spiral drilling machine | |
| CN2568800Y (en) | Connecting sleeve of drill shank | |
| CN201883946U (en) | Shoulder circular arc PDC (polycrystalline diamond compact) bit | |
| CN203830800U (en) | Percussion drilling sheet | |
| CN201826755U (en) | Drilling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG ROCK DRILLING TOOLS CO., LTD. Free format text: FORMER OWNER: LI MINGSUO Effective date: 20130315 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130315 Address after: 252311, No. three, 3 mountain road, West Lake Town, Yanggu County, Shandong, Liaocheng Patentee after: Shandong drilling & Drilling Tools Co., Ltd. Address before: 252311 No. 14, Yanggu, Yanggu County, Shandong, West Lake Patentee before: Li Mingsuo |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 Termination date: 20130516 |