CN204882217U - Cyclic annular test piece centre gripping fixing device - Google Patents

Cyclic annular test piece centre gripping fixing device Download PDF

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Publication number
CN204882217U
CN204882217U CN201520512144.5U CN201520512144U CN204882217U CN 204882217 U CN204882217 U CN 204882217U CN 201520512144 U CN201520512144 U CN 201520512144U CN 204882217 U CN204882217 U CN 204882217U
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CN
China
Prior art keywords
clamping
annular test
fixing
chuck
piece
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
Application number
CN201520512144.5U
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Chinese (zh)
Inventor
王海斗
马国政
陈书赢
邢志国
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Academy of Armored Forces Engineering of PLA
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Academy of Armored Forces Engineering of PLA
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Priority to CN201520512144.5U priority Critical patent/CN204882217U/en
Application granted granted Critical
Publication of CN204882217U publication Critical patent/CN204882217U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a fatigue test equipment technical field especially relates to the cyclic annular test piece centre gripping fixing device that can fix a plurality of cyclic annular test pieces. The utility model provides a cyclic annular sample centre gripping fixing device includes chuck clamping part, separation portion and test piece clamping part, separation portion locates between chuck clamping part and the test piece clamping part for keep apart chuck and cyclic annular test piece, the test piece clamping part is cylindricly, just the cylinder of the outside end of test piece clamping part is equipped with the annular thread district, and this annular thread district is used for fixed threaded fastener. The utility model discloses can once fix a plurality of cyclic annular test pieces on the test piece clamping part, accomplish the fixed of a plurality of cyclic annular test pieces, can ensure one -time Setup, accomplish the spraying work of more cyclic annular test pieces.

Description

A kind of annular test-piece clamping and fixing device
Technical field
The utility model relates to fatigue rig technical field, particularly relates to a kind of annular test-piece clamping and fixing device can fixing multiple annular test-piece.
Background technology
It is that material is under alternate load effect that contact fatigue lost efficacy, local produces permanent accumulated damage, and after certain cycle index, forming the process that the materials such as surface in contact generation pit, shallow-layer or deep delamination are removed, is the common surface failure forms of engineering goods (as gear, bearing, roll).A lot of main equipment all result in scrapping of complete machine due to the contact fatigue inefficacy of surperficial parts, greatly wastes resource.In recent years, under the vigorously advocating of country, all trades and professions carry out the research of manufacture again of worn-out machine tools in a deep going way, are only the problems causing part rejection due to surface damage to solving these.The surface engineering technology of a series of advanced person demonstrates out unique advantage gradually respectively in the injury repair of all kinds of part.Supersonic Plasma Spraying technology is an important member in Rebuilding engineering technology group; its ultimate principle is; by the thermal source that formed with plasma by the powder heat fused of repair layer; and under the effect of the protection gas being principal ingredient with Ar gas, form high-pressure gas jet particle is constantly accelerated; spread into piece surface to be repaired subsequently, solidify formation coating.Because Supersonic Plasma Spraying technology is at the higher refractory particle of the fusing point that can melt; there is the protective effect of inert gas simultaneously; high-pressure spray can guarantee that particle sprawls more smooth, coating is more fine and close, thus in the surface damage reparation of part, has application prospect comparatively widely.
In order to promote the application of Supersonic Plasma Spraying technology in rotary part surface damage, need comparatively comprehensively to examine the military service performance of selected repair layer under Structure deformation condition, and before determining final coating material and preparation parameter, need to adopt standard specimen to carry out preliminary coating fatigue property test in laboratory conditions.Because the fatigue behaviour dispersiveness of coating is relatively large, in order to obtain more fully coating fatigue life prediction result, the statistical analysis technique based on big-sample data is the most direct at present, the approach be most widely used.
In order to examine the military service performance of wear-resistant coating under Structure deformation operating mode of rotary part surface preparation, prediction rotary part surface manufactures the service life of repair layer again, needs to carry out test of many times checking to it in laboratory conditions.Because true accessory size, shape, material are not quite similar, thus before the stand examination carrying out actual parts, be all generally that unification is first carried out on the standard specimen of given size, these standard specimens are called as standard rollers.
In prior art, standard rollers spraying process, for the standard rollers (being called ring specimen in this patent) of annular, the fixture of hole size in a kind of applicable annular test-piece of usual employing, fixture is positioned on the turntable that triangle chuck is housed, by turntable, standard rollers is rotated, move left and right spray gun, in standard rollers surface preparation coating.In order to save time, improve spray efficiency, this just requires, after striking each time starts spraying, all will complete more work as far as possible on the basis of guaranteeing coating quality.And existing fixture is subject to the impact of centering in turntable rotation process, cannot clamp enough standard rollers, work efficiency is lower simultaneously.
In addition, be placed on fixture when multiple standard rollers nestles up mutually, spray gun can go out to form coating in the gap between adjacent two standard rollers at the uniform velocity reciprocatory movement, thus make mutually to bond together between on this fixture one group of standard rollers, later stage needs to cut by the mode such as emery wheel or Linear cut, which adds operation, reduce efficiency.
Therefore, how in a preliminary work, realize the spraying operation of multiple ring specimen, become the technical barrier that those skilled in the art are urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of annular test-piece clamping and fixing device can fixing multiple annular test-piece.
To achieve these goals, the utility model provides a kind of annular test-piece clamping and fixing device, comprises chuck clamping part, isolation part and specimen holder portion; Described isolation part is located between chuck clamping part and specimen holder portion, for isolating chuck and annular test-piece; Described specimen holder portion is cylindric, and the cylinder of the outboard end in described specimen holder portion is provided with ring screw district, and this ring screw district is used for retaining thread securing member.
Preferably, described chuck clamping part, isolation part and specimen holder portion are equipped with along its axially extended through hole, and this through hole is used for passing through heat eliminating medium.
Preferably, the inlet end of described through hole is arc-shaped, and the body of described through hole is columnar through holes, and the radial dimension of described inlet end is greater than the radial dimension of described columnar through holes.
Preferably, the end face of described inlet end and the end face of described columnar through holes tangent.
Preferably, the radial dimension of described through hole reduces from inlet end gradually to outlet side.
Preferably, outside the cylinder of described clamping part, cover has the end face protection pad for isolating adjacent annular test specimen end face.
Preferably, the both sides of the radial outer of described end face protection pad are provided with along the axially extended annular protrusion of this end face neonychium sheet.
Preferably, described threaded fastener is fastening nut.
The ring-shaped sample clamping and fixing device that the utility model provides comprises chuck clamping part, isolation part and specimen holder portion; Described isolation part is located between chuck clamping part and specimen holder portion, for isolating chuck and annular test-piece; Described specimen holder portion is cylindric, and the cylinder of the outboard end in described specimen holder portion is provided with ring screw district, and this ring screw district is used for retaining thread securing member.Chuck clamping part is fixed on the chuck that is arranged on turntable, and one or more annular test-piece is once sleeved in specimen holder portion, is separated between annular test-piece and chuck clamping part by isolation part, and the outer end of ring specimen is undertaken fastening by threaded fastener.Multiple annular test-piece can once be fixed in specimen holder portion by the utility model, completes the fixing of multiple annular test-piece, can guarantee one-step installation, complete the spray coating operations of more annular test-piece.
In preferred scheme, outside the cylinder of described clamping part, cover has the end face protection pad for isolating adjacent annular test specimen end face.This end face protection pad is arranged between adjacent two ring-shaped sample axial end portions, can well be separated ring specimen, and the end face of protection ring specimen, not by the pollution of spraying particle, does not affect again ring specimen surface coating sedimentation effect simultaneously.
In preferred scheme, described chuck clamping part, isolation part and specimen holder portion are equipped with along its axially extended through hole, and this through hole is used for passing through heat eliminating medium.Can by heat eliminating medium at a high speed in through hole, heat eliminating medium at a high speed can cool fast to ring-shaped sample, and ring specimen matrix can be prevented overheated, improves the bond strength of coating and ring specimen matrix, strengthens the military service performance of coating.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the main TV structure schematic diagram of the ring-shaped sample clamping and fixing device provided described in the utility model;
Fig. 2 is the spatial structure signal of ring-shaped sample clamping and fixing device provided by the utility model;
Fig. 3 is the perspective view of threaded fastener;
Fig. 4 is the perspective view of end face protection pad;
Wherein, in Fig. 1-Fig. 4:
Chuck clamping part 1, isolation part 2, specimen holder portion 3, end face protection pad 4, annular protrusion 41, threaded fastener 5, ring screw district 6, through hole 7, inlet end 8.
Embodiment
For making those skilled in the art understand the technical solution of the utility model better, below in conjunction with accompanying drawing, the plasma processing device that the utility model provides is described in detail.
As shown in Figure 1 and Figure 2, ring-shaped sample clamping and fixing device provided by the utility model comprises chuck clamping part 1, isolation part 2 and specimen holder portion 3; Described isolation part 2 is located between chuck clamping part 1 and specimen holder portion 3, for isolating chuck and annular test-piece; Described specimen holder portion 3 is in cylindric, and the cylinder of the outboard end in described specimen holder portion 3 is provided with ring screw district 6, and this ring screw district 6 is for retaining thread securing member 5.
Please refer to Fig. 3, Fig. 3 is the perspective view of threaded fastener, and threaded fastener 5 can adopt threaded fastener nut.
The ring-shaped sample clamping and fixing device that the utility model provides comprises chuck clamping part 1, isolation part 2 and specimen holder portion 3; Described isolation part 2 is located between chuck clamping part 1 and specimen holder portion 3, for isolating chuck and annular test-piece; Described specimen holder portion 3 is in cylindric, and the cylinder of the outboard end in described specimen holder portion 3 is provided with ring screw district 6, and this ring screw district 6 is for retaining thread securing member 5.Chuck clamping part 1 is fixed on the chuck that is arranged on turntable, one or more annular test-piece is sleeved in specimen holder portion 3 successively, separated by isolation part 2 between annular test-piece and chuck clamping part 1, the outer end of ring specimen is undertaken fastening by threaded fastener 5.Multiple annular test-piece can once be fixed in specimen holder portion 3 by the utility model, completes the fixing of multiple annular test-piece, can guarantee one-step installation, complete the spray coating operations of more annular test-piece.
In preferred scheme, described chuck clamping part 1, isolation part 2 and specimen holder portion 3 are equipped with along its axially extended through hole 7, and this through hole 7 is for passing through heat eliminating medium.Can by heat eliminating medium at a high speed in through hole 7, heat eliminating medium at a high speed can cool fast to ring-shaped sample, and ring specimen matrix can be prevented overheated, improves the bond strength of coating and ring specimen matrix, strengthens the military service performance of coating.
In more excellent scheme, the inlet end 8 of described through hole 7 is in arc-shaped, the body of described through hole 7 is columnar through holes 7, the radial dimension of described inlet end 8 is greater than the radial dimension of described columnar through holes 7, cooling-air inlet port area can be increased like this, gradually reduce volume of air subsequently, to increase air pressure in hole and speed, improves cooling effect.
In further scheme, the end face of described inlet end 8 and the end face of described columnar through holes 7 tangent, can make the cooling-air of inlet end 8 mild enter in columnar through holes 7, reduce resistance when entering through hole 7.
In more excellent scheme, the radial dimension of described through hole 7 reduces gradually from inlet end 8 to outlet side, the pressure of the interior cooling-air of through hole 7 can be made like this to increase gradually, although cooling-air uprises gradually in working direction temperature, but the pressure of cooling-air becomes large gradually, annular test-piece can be made even in the cooling of axis.
In preferred scheme, outside the cylinder of described clamping part, cover has the end face protection pad 4 for isolating adjacent annular test specimen end face.This end face protection pad 4 is arranged between adjacent two ring-shaped sample axial end portions, can well be separated ring specimen, and the end face of protection ring specimen, not by the pollution of spraying particle, does not affect again ring specimen surface coating sedimentation effect simultaneously.
In more excellent scheme; the both sides of the radial outer of described end face protection pad 4 are provided with along the axially extended annular protrusion 41 of this end face protection pad 4; the annular protrusion 41 that extended by axial both sides of end face protection pad 4 of this structure, better the end of the ring specimen of protection two abutting ends is by the pollution of spraying particle.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present utility model is described and adopts, but the utility model is not limited thereto.For those skilled in the art, when not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.

Claims (8)

1. an annular test-piece clamping and fixing device, is characterized in that, comprises chuck clamping part, isolation part and specimen holder portion; Described isolation part is located between chuck clamping part and specimen holder portion, for isolating chuck and annular test-piece; Described specimen holder portion is cylindric, and the cylinder of the outboard end in described specimen holder portion is provided with ring screw district, and this ring screw district is used for retaining thread securing member.
2. annular test-piece clamping and fixing device according to claim 1, is characterized in that, described chuck clamping part, isolation part and specimen holder portion are equipped with along its axially extended through hole, and this through hole is used for passing through heat eliminating medium.
3. annular test-piece clamping and fixing device according to claim 2, is characterized in that, the inlet end of described through hole is arc-shaped, and the body of described through hole is columnar through holes, and the radial dimension of described inlet end is greater than the radial dimension of described columnar through holes.
4. annular test-piece clamping and fixing device according to claim 3, is characterized in that, the end face of described inlet end and the end face of described columnar through holes tangent.
5. annular test-piece clamping and fixing device according to claim 2, is characterized in that, the radial dimension of described through hole reduces from inlet end gradually to outlet side.
6. annular test-piece clamping and fixing device according to claim 1, is characterized in that, outside the cylinder of described clamping part, cover has the end face protection pad for isolating adjacent annular test specimen end face.
7. annular test-piece clamping and fixing device according to claim 6, is characterized in that, the both sides of the radial outer of described end face protection pad are provided with along the axially extended annular protrusion of this end face neonychium sheet.
8. annular test-piece clamping and fixing device according to claim 1, is characterized in that, described threaded fastener is fastening nut.
CN201520512144.5U 2015-07-15 2015-07-15 Cyclic annular test piece centre gripping fixing device Expired - Fee Related CN204882217U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520512144.5U CN204882217U (en) 2015-07-15 2015-07-15 Cyclic annular test piece centre gripping fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520512144.5U CN204882217U (en) 2015-07-15 2015-07-15 Cyclic annular test piece centre gripping fixing device

Publications (1)

Publication Number Publication Date
CN204882217U true CN204882217U (en) 2015-12-16

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Family Applications (1)

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109030133A (en) * 2018-06-14 2018-12-18 华东交通大学 A kind of method of T-type sample production test specimen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109030133A (en) * 2018-06-14 2018-12-18 华东交通大学 A kind of method of T-type sample production test specimen

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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: 20151216

Termination date: 20160715