CN205147579U - Special friction stir machining tool is made to screw for high performance craft - Google Patents
Special friction stir machining tool is made to screw for high performance craft Download PDFInfo
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- CN205147579U CN205147579U CN201520940323.9U CN201520940323U CN205147579U CN 205147579 U CN205147579 U CN 205147579U CN 201520940323 U CN201520940323 U CN 201520940323U CN 205147579 U CN205147579 U CN 205147579U
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- shaft shoulder
- mixing
- shank
- pin
- mixing needle
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Abstract
The utility model discloses a special friction stir machining tool is made to screw for high performance craft, including the shaft shoulder, the shaft shoulder is equipped with a plurality of shank -pin, its characterized in that, and shank -pin quantity is six, and in tip along the shaft shoulder axial extension of the shaft shoulder, shank -pin divide into two shank -pin groups shank -pin group and the 2nd shank -pin group, respectively there is three shank -pin in first, the 2nd shank -pin group, and is first, and the 2nd shank -pin group is the axial symmetry and distributes, in the shaft shoulder was inserted to shank -pin's one end, the other end extended outside the shaft shoulder, and the tip that shank -pin extends the shaft shoulder outside is equipped with stirring portion, and stirring portion includes first stirring portion and second stirring portion, and first stirring portion is convex structure, distributed in shank -pin western zhou dynasty, and the partial cloth of second stirring is in first stirring portion junction, and the interval is continuous in proper order with second stirring portion in first stirring portion, forms closed curved surface. Through many special design's shank -pin, can effectively stir, promote stirring efficiency, improve the result of use.
Description
Technical field
The present invention relates to a kind of high performance craft screw and manufacture Special agitating friction machining tool.
Background technology
China becomes the first in the world shipbuilding big country already, to the development of shipbuilding power.Current China shipbuilding gross ton figure place is sure to occupy the first in the world.Along with the arrival in ocean epoch, Shipping industry is in the important stage of the development of great-leap-forward, needs a large amount of high-performance ship, and also more and more higher to the requirement of boats and ships and parts quality thereof.Therefore, more utility model is embodied also for the importance of the mechanical property of propeller material, anti-Cavitation to show.Screw is in Ship Propeling process, continuous generation cavity, the negative pressure explosion that cavity produces produces up to hundreds of MPa to 1000MPa pulse stress screw surface, under the reciprocation of seawater corrosion, vacuolus denudation and stress corrosion, propeller blade can even rupture greatly reduction of service life.For a long time, vacuolus denudation, seawater corrosion and stress corrosion are considered to the problem be not easily solved, and a lot of research institution, from the structural point of propulsion system, starts with from structure and solves vacuolus denudation problem, but poor effect always, could not solve the vacuolus denudation problem of screw.From the sixties in last century, the material of the seawater corrosion resistances such as external development Cr-Ni-Mo system stainless steel, Fe-Mn-Al alloy, cermet, Ti-Ni alloy, anti-vacuolus denudation, but the rarely found copper alloy had as propeller material.There is scholar both at home and abroad to metal material surface chromium plating process; find that corrosion resistance is mother metal 7 ~ 8 times by polarization curve research; improve 2 ~ 6 times service life; built-up welding is carried out at Ni-Al bronze propeller material; laser cladding method forms the anti-cavitation corrosion coating protection of copper alloy propeller material, but a lot of technique and method to weigh hundreds of kilogram even the screw of tens tons apply and be restricted and restriction.Consult according to related documents, from the eighties in last century, abroad more domestic scholars have carried out more detailed research to propeller material surface spraying, surface modification work, obtain useful result of the test, but do not carry out application study to entity spiral oar.But these researchs all relatively early, all not can solve the surface property problem of screw.
Agitating friction welding be utilize workpiece end face mutually to move, heat that phase mutual friction produces, make end reach hot plastic state, then upset rapidly, complete a kind of method of welding.Machining tool design is the core of Friction welding technique, and selects suitable machining tool to be the key realizing high quality welds.The essence of friction stir welding heat-machine effect occurs between mixing needle and materials to be welded and forms joint, and mixing needle directly bears that heat is carried, power carries and fretting wear in the process.Mixing yoghurt instrument of the prior art comprises the shaft shoulder and mixing needle, and described mixing needle is arranged on described shaft shoulder one end, the mixing yoghurt instrument of this structure due to mixing needle be independent, easily wear and tear during use, and due to contact area limited, therefore, working (machining) efficiency is lower.
Summary of the invention
Technical problem to be solved by this invention provides a kind of high performance craft screw to manufacture Special agitating friction machining tool for above drawback, by the mixing needle of many particular design, effectively can stir, promote stirring efficiency, improve result of use.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of high performance craft screw manufactures Special agitating friction machining tool, comprise the shaft shoulder, the described shaft shoulder is provided with multiple mixing needle, it is characterized in that, described mixing needle quantity is six, axially extend along the shaft shoulder in the end of the described shaft shoulder, described mixing needle is divided into two mixing needle groups, comprises the first mixing needle group and the second mixing needle group, and first, second mixing needle group described respectively has three described mixing needles, described first, second mixing needle group distributes axisymmetricly; One end of described mixing needle is inserted in the described shaft shoulder, the other end extends in outside the described shaft shoulder, the end that described mixing needle extends in outside the shaft shoulder is provided with mixing part, and described mixing part comprises the first mixing part and the second mixing part, and described first mixing part quantity is four, in arc-shaped structure, be distributed in described mixing needle Western Zhou Dynasty, described second mixing part quantity is four, is distributed in described first junction, mixing part, described first mixing part and the second mixing part are connected at interval successively, form closed curved surface.
Above-mentioned a kind of high performance craft screw manufactures Special agitating friction machining tool, and wherein, described first mixing needle group and the second mixing needle group, often in group, adjacent mixing needle angle is 45 degree.
Compared to prior art, the beneficial effects of the utility model are:
Adopt two groups of mixing needle groups, increase the number of mixing needle, the contact area with softener material can be increased substantially, improve stirring efficiency, and mixing needle group takes symmetrical mode to distribute, and can realize uniform stirring, improve mixing effect.
By the design of the geometry of stirring-head; the softener material below shaft shoulder end is made to be subject to the effect of the power of inward direction; thus the center being conducive to the softener material formed below shaft shoulder end to collect shaft shoulder end face is to add the cavity filling mixing needle rear and formed; need the stress reducing stirring-head inside in friction process concentrate and protect mixing needle simultaneously; thus, extend service life of the present utility model.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that X of the present utility model is to schematic diagram.
Fig. 3 is the structural representation of mixing needle of the present utility model.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
In order to solve the problems of the technologies described above, a kind of high performance craft screw manufactures Special agitating friction machining tool, comprise the shaft shoulder 1, the described shaft shoulder 1 is provided with multiple mixing needle 2, it is characterized in that, described mixing needle 2 quantity is six, axially extend along the shaft shoulder 1 in the end of the described shaft shoulder 1, described mixing needle 2 is divided into two mixing needle groups 3,4, comprise the first mixing needle group 3 and the second mixing needle group 4, first, second mixing needle group 3,4 described respectively has three described stirrings 2, and the described first, second mixing needle group 3,4 distributes axisymmetricly; One end of described mixing needle 2 is inserted in the described shaft shoulder 1, the other end extends in outside the described shaft shoulder 1, described mixing needle 2 end extended in outside the shaft shoulder 1 is provided with mixing part 21,22, described mixing part 21,22 comprises the first mixing part 21 and the second mixing part 22, described first mixing part 21 quantity is four, in arc-shaped structure, be distributed in described mixing needle 2 Western Zhou Dynasty, described second mixing part 22 quantity is four, be distributed in described first junction, mixing part 21, described first mixing part 21 and the second mixing part 22 are connected at interval successively, form closed curved surface.Described first mixing needle group 3 and the second mixing needle group 4, often in group, adjacent mixing needle 2 angle is 45 degree.
Compared to prior art, the beneficial effects of the utility model are:
Adopt two groups of mixing needle groups, increase the number of mixing needle, the contact area with softener material can be increased substantially, improve stirring efficiency, and mixing needle group takes symmetrical mode to distribute, and can realize uniform stirring, improve mixing effect.
By the design of the geometry of stirring-head; the softener material below shaft shoulder end is made to be subject to the effect of the power of inward direction; thus the center being conducive to the softener material formed below shaft shoulder end to collect shaft shoulder end face is to add the cavity filling mixing needle rear and formed; need the stress reducing stirring-head inside in friction process concentrate and protect mixing needle simultaneously; thus, extend service life of the present utility model.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. a high performance craft screw manufactures Special agitating friction machining tool, comprise the shaft shoulder, the described shaft shoulder is provided with multiple mixing needle, it is characterized in that, described mixing needle quantity is six, axially extend along the shaft shoulder in the end of the described shaft shoulder, described mixing needle is divided into two mixing needle groups, comprises the first mixing needle group and the second mixing needle group, and first, second mixing needle group described respectively has three described mixing needles, described first, second mixing needle group distributes axisymmetricly; One end of described mixing needle is inserted in the described shaft shoulder, the other end extends in outside the described shaft shoulder, the end that described mixing needle extends in outside the shaft shoulder is provided with mixing part, and described mixing part comprises the first mixing part and the second mixing part, and described first mixing part quantity is four, in arc-shaped structure, be distributed in described mixing needle Western Zhou Dynasty, described second mixing part quantity is four, is distributed in described first junction, mixing part, described first mixing part and the second mixing part are connected at interval successively, form closed curved surface.
2. a kind of high performance craft screw as claimed in claim 1 manufactures Special agitating friction machining tool, and it is characterized in that, described first mixing needle group and the second mixing needle group, often in group, adjacent mixing needle angle is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520940323.9U CN205147579U (en) | 2015-11-24 | 2015-11-24 | Special friction stir machining tool is made to screw for high performance craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520940323.9U CN205147579U (en) | 2015-11-24 | 2015-11-24 | Special friction stir machining tool is made to screw for high performance craft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205147579U true CN205147579U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520940323.9U Expired - Fee Related CN205147579U (en) | 2015-11-24 | 2015-11-24 | Special friction stir machining tool is made to screw for high performance craft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205147579U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728932A (en) * | 2015-11-24 | 2016-07-06 | 镇江同舟螺旋桨有限公司 | Special friction stir processing tool for manufacturing high-performance marine propeller |
| CN106271032A (en) * | 2016-10-19 | 2017-01-04 | 合肥工业大学 | A kind of many stirring-heads mechanism being applied to mixing yoghurt |
-
2015
- 2015-11-24 CN CN201520940323.9U patent/CN205147579U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728932A (en) * | 2015-11-24 | 2016-07-06 | 镇江同舟螺旋桨有限公司 | Special friction stir processing tool for manufacturing high-performance marine propeller |
| CN106271032A (en) * | 2016-10-19 | 2017-01-04 | 合肥工业大学 | A kind of many stirring-heads mechanism being applied to mixing yoghurt |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20191124 |