CN204953982U - Two screw locking crown blades in V type constant head tank - Google Patents
Two screw locking crown blades in V type constant head tank Download PDFInfo
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- CN204953982U CN204953982U CN201520771017.7U CN201520771017U CN204953982U CN 204953982 U CN204953982 U CN 204953982U CN 201520771017 U CN201520771017 U CN 201520771017U CN 204953982 U CN204953982 U CN 204953982U
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- crown
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- cutting edge
- crown blade
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Abstract
The utility model relates to a two screw locking crown blades in V type constant head tank, the right -hand member of crown blade are equipped with for the V type locating surface that matches with drilling rod work portion locating surface, and the left end of crown blade is equipped with the cutting edge that comprises chisel edge, transition sword and main cutting edge, and the chip groove forms the main cutting edge with the intersecting line of back knife face, and the intersecting line of two back knife faces forms the chisel edge, and it has the transition sword to grind between main cutting edge and the chisel edge, the crown blade is equipped with the crown edge in the diametric(al), and the crown edge is the face of cylinder that the heliciform has the width, and the crown blade is equipped with the shoulder hole that is used for installing the housing screw, and the position of fastening screw is relative on the axis perpendicular to blade installation face of shoulder hole, the position of shoulder hole and drilling rod. Two screw locking's blade area of contact is big in the V type constant head tank, bears the weight of the reinforce, and the centre gripping good reliability is fit for the roughing feed cutting.
Description
Technical field
The utility model relates to two screw lock crown blade in a kind of V-type locating slot.
Background technology
Crown drill bit is that head adopts carbide alloy or other high performance materials, and drilling rod adopts a kind of combination type drill bit of alloy steel material.There is the advantages such as use cost is low, the range of work is large.
At present, the head of crown drill bit and drilling rod have multiple combination mode.Such as there are " locking is run through in pin location, screw ", " broken line groove location, positive left-hand thread screw lock ", " location, intersection V-arrangement face, post-tensioning screw lock ", " open pin location, non-screw rotate clamping " etc. all multi-form.These location and locking mode respectively have feature, but most complex structure, production cost is higher.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art existence, provides two screw lock crown blade in a kind of V-type locating slot.
The purpose of this utility model is achieved through the following technical solutions:
Two screw lock crown blade in V-type locating slot, feature is: the right-hand member of crown blade is provided with the V-type locating surface in order to match with drilling rod operate portions locating surface, the left end of crown blade is provided with the cutting edge be made up of chisel edge, transitional edges and main cutting edge, the intersection of chip area and rear knife face forms main cutting edge, after two, the intersection of knife face forms chisel edge, and between main cutting edge and chisel edge, mill has transitional edges; Crown blade is provided with crown seamed edge in diametric(al), crown seamed edge has the face of cylinder of width in the shape of a spiral, crown blade is provided with the shoulder hole for installing housing screw, and the axes normal of shoulder hole is in blade installed surface, and the position of shoulder hole is relative with the position of screw fastening on drilling rod.
Further, two screw lock crown blade in above-mentioned V-type locating slot, wherein, the angle of described V-type locating surface is 90 ° ~ 140 °.
Further, two screw lock crown blade in above-mentioned V-type locating slot, wherein, the angle formed between main cutting edge is drift angle, and angle is 120 ~ 140 °.
Further, two screw lock crown blade in above-mentioned V-type locating slot, wherein, the ladder angle of described shoulder hole is 40 ° ~ 90 °.
Further, two screw lock crown blade in above-mentioned V-type locating slot, wherein, the bottom of described crown blade is the structure that polishes structure, rectangular groove structure, arc section and straightway transition and formed or arc section structure.
Substantive distinguishing features and the progress of technical solutions of the utility model are mainly reflected in:
Adopt V-arrangement location structure, have that structure is simple, production precision is easy to the features such as guarantee.The production cost of crown blade and drill bit knife bar can be reduced.In V-type locating slot, the blade contact area of two screw lock crown drill bit is large, and bearing capacity is strong, clamping good reliability, is applicable to roughing feed and cuts.Adopt in groove and be locked into, can further improve the bonding strength of crown blade and cutter hub, contribute to improving the bearing capacity of drill bit in high feeding situation, and contribute to the reliability of the axiality ensureing blade and knife bar shank.
Accompanying drawing explanation
Fig. 1: the schematic front view of crown blade;
Fig. 2: schematic diagram is looked on a left side for crown blade;
The D-D cross-sectional schematic of Fig. 3: Fig. 1;
Fig. 4: the partial schematic diagram of crown blade seamed edge helical angle;
Fig. 5 a: the schematic diagram of a kind of polycrystalline substance form of crown blade;
Fig. 5 b: the schematic diagram of another polycrystalline substance form of crown blade;
Fig. 5 c: the schematic diagram of another polycrystalline substance form of crown blade;
Fig. 5 d: the schematic diagram of another polycrystalline substance form of crown blade.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
As shown in figures 1-4, two screw lock crown blade in V-type locating slot, the right-hand member of crown blade is provided with the V-type locating surface 16 in order to match with drilling rod operate portions locating surface, the angle of V-type locating surface 16 is 90 ° ~ 140 °, the left end of crown blade is provided with the cutting edge be made up of chisel edge 17, transitional edges 18 and main cutting edge 19, the intersection of chip area and rear knife face forms main cutting edge 19, the angle formed between main cutting edge is drift angle 20, angle is 120 ~ 140 °, after two, the intersection of knife face forms chisel edge 17, and between main cutting edge and chisel edge, mill has transitional edges 18; Crown blade is provided with crown seamed edge 21 in diametric(al), crown seamed edge 21 has the face of cylinder of width in the shape of a spiral, crown blade is provided with the shoulder hole 23 for installing housing screw, the axes normal of shoulder hole 23 is in blade installed surface, the position of shoulder hole is relative with the position of fastening screw 15, and the ladder angle 24 of shoulder hole is 40 ° ~ 90 °.
Crown blade is anchored on drilling rod by housing screw.
Because a kind of closed location structure is orientated in V-type face as, for avoiding interfering, can be various ways by the bottom design of crown blade, as Fig. 5 a, the bottom of crown blade be for polishing structure; As Fig. 5 b, the bottom of crown blade is rectangular groove structure; As Fig. 5 c, the bottom of crown blade is the structure that arc section and straightway transition are formed; As Fig. 5 d, the bottom of crown blade is arc section structure.
Adopt V-arrangement location structure, have that structure is simple, production precision is easy to the features such as guarantee.The production cost of crown blade and drill bit knife bar can be reduced.In V-type locating slot, the blade contact area of two screw lock crown drill bit is large, and bearing capacity is strong, clamping good reliability, is applicable to roughing feed and cuts.Adopt in groove and be locked into, can further improve the bonding strength of crown blade and cutter hub, contribute to the axiality ensureing blade and knife bar shank.
It is to be understood that: the above is only preferred embodiment of the present utility model; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
- Two screw lock crown blade in 1.V type locating slot, it is characterized in that: the right-hand member of crown blade is provided with the V-type locating surface in order to match with drilling rod operate portions locating surface, the left end of crown blade is provided with the cutting edge be made up of chisel edge, transitional edges and main cutting edge, the intersection of chip area and rear knife face forms main cutting edge, after two, the intersection of knife face forms chisel edge, and between main cutting edge and chisel edge, mill has transitional edges; Crown blade is provided with crown seamed edge in diametric(al), crown seamed edge has the face of cylinder of width in the shape of a spiral, crown blade is provided with the shoulder hole for installing housing screw, and the axes normal of shoulder hole is in blade installed surface, and the position of shoulder hole is relative with the position of screw fastening on drilling rod.
- 2. two screw lock crown blade in V-type locating slot according to claim 1, is characterized in that: the angle of described V-type locating surface is 90 ° ~ 140 °.
- 3. two screw lock crown blade in V-type locating slot according to claim 1, it is characterized in that: the angle formed between main cutting edge is drift angle, angle is 120 ~ 140 °.
- 4. two screw lock crown blade in V-type locating slot according to claim 1, is characterized in that: the ladder angle of described shoulder hole is 40 ° ~ 90 °.
- 5. two screw lock crown blade in V-type locating slot according to claim 1, is characterized in that: the bottom of described crown blade is the structure that polishes structure, rectangular groove structure, arc section and straightway transition and formed or arc section structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520771017.7U CN204953982U (en) | 2015-09-30 | 2015-09-30 | Two screw locking crown blades in V type constant head tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520771017.7U CN204953982U (en) | 2015-09-30 | 2015-09-30 | Two screw locking crown blades in V type constant head tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204953982U true CN204953982U (en) | 2016-01-13 |
Family
ID=55049079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520771017.7U Active CN204953982U (en) | 2015-09-30 | 2015-09-30 | Two screw locking crown blades in V type constant head tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204953982U (en) |
-
2015
- 2015-09-30 CN CN201520771017.7U patent/CN204953982U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Suzhou City, Jiangsu province 215021 Industrial Park Kuatang subarea Baoda Road No. 8 Patentee after: Suzhou Ahno Precision Cutting Technology Co., Ltd. Address before: Suzhou City, Jiangsu province 215021 Industrial Park Kuatang subarea Baoda Road No. 8 Patentee before: Suzhou Ahno Cutting Tool Technology Co., Ltd. |