CN202219460U - Polishing wheel for polishing air inlet and exhaust edges of blades - Google Patents
Polishing wheel for polishing air inlet and exhaust edges of blades Download PDFInfo
- Publication number
- CN202219460U CN202219460U CN2011202599851U CN201120259985U CN202219460U CN 202219460 U CN202219460 U CN 202219460U CN 2011202599851 U CN2011202599851 U CN 2011202599851U CN 201120259985 U CN201120259985 U CN 201120259985U CN 202219460 U CN202219460 U CN 202219460U
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- wheel
- polishing
- emery cloth
- sanding
- wheels
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Abstract
The utility model provides a polishing wheel for polishing air inlet and exhaust edges of blades, which comprises a stepped shaft, gaskets, at least two sanding wheels and a positioning nut. Non-polishing surfaces of two pieces of circular sanding belt paper are adhered to form each sanding wheel, the sanding wheels are coaxially sleeved on a threaded section of the stepped shaft, one gasket is sleeved between each two sanding wheels, the thickness of each gasket is equal to that of an air inlet and exhaust edge of a blade to be polished, the positioning nut is sleeved on a threaded section of the outer side of the outermost-layer sanding wheel, and the sanding wheels are fixed onto the stepped shaft by the positioning nut. The rigidity of a spindle of the polishing wheel is increased by the aid of the stepped shaft, the position of the innermost-layer sanding wheel can be fixed conveniently, the sanding belt paper with different granularities can be selected to be made into the multiple sanding wheels with different granularities, and multiple polishing spaces can be formed. In addition, the hardness of sand cloth can be reduced due to the pedal-shaped sanding wheels, flexibility of the sanding wheels is improved, and simultaneously, the polishing wheel is favorable for heat dissipation and prevents the air inlet and exhaust edge of the blade from being burned out.
Description
Technical field
The utility model relates to field of machining, is specially a kind of polishing wheel that is used to polish blade intake and exhaust limit.
Background technology
Blade is the critical component of aero-engine, and its manufacture accounts for about 1/3rd of complete machine manufacture.Blade of aviation engine intake and exhaust limit is the transition free form surface; After rose cutter processing, the surface must form Wave crest and wave trough, and owing to reasons such as cutting tool path curvature variations; Also can cause residual height in the ranks to differ bigger, this will have a strong impact on the performance and the life-span of engine.So processing must be polished in the blade intake and exhaust limit after the milling,, improve surface quality to reduce surface roughness and percent ripple.
Present stage, the artificial hand-held abrasive band of domestic main employing paper method polishing blade of aviation engine intake and exhaust limit, its polishing efficiency is low, quality of finish is unstable; Existing in addition automation polishing wheel hardness is bigger, and is flexible relatively poor, when being applied to blade of aviation engine intake and exhaust edge polishing field, causes the damage on intake and exhaust limit easily.The production cycle that these are all having a strong impact on blade part is restricting aero-engine operating characteristic and security, thereby needs development badly and be used to polish the polishing wheel on blade intake and exhaust limit.
Summary of the invention
The technical problem that solves
When polishing blade of aviation engine intake and exhaust limit in order to overcome existing manual work; The polishing precision is difficult to guarantee; And existing automation polishing wheel hardness is bigger, is prone to cause the defectives such as damage on intake and exhaust limit, the utility model provides a kind of polishing wheel that is used to polish blade intake and exhaust limit.
Technical scheme
The technical scheme of the utility model is:
Said a kind of polishing wheel that is used to polish blade intake and exhaust limit is characterized in that: comprise multidiameter, pad, emery cloth wheel and setscrew nut; Multidiameter is the thin three-stage structures in thick two ends, stage casing, and the axial length of three-stage structure is identical, and one section thin diameter segment wherein is a thread segment; The emery cloth wheel is by bonding the forming of non-burnishing surface of two circular abrasive band paper, and emery cloth wheel both sides rounded face all has abrasive particle; Said polishing wheel comprises at least two emery cloth wheels; The coaxial multidiameter thread segment that is enclosed within of all emery cloth wheels is with pad between adjacent two emery cloths wheel, and spacer thickness equals polished blade intake and exhaust limit thickness, and the pad diameter is 1/5～2/5 of an emery cloth wheel diameter; Be with setscrew nut on the thread segment in the outermost layer emery cloth wheel outside, setscrew nut is fixing on multidiameter with the emery cloth wheel.
Said a kind of polishing wheel that is used to polish blade intake and exhaust limit, along the circumferential direction whenever at a distance from the circle ring sector of 10 ° of central angles of 35 ° of central angle excisions, wherein the circle ring sector root radius equals the pad radius on the emery cloth wheel.
Beneficial effect
A kind of polishing wheel that is used to polish blade intake and exhaust limit that the utility model proposes, wherein the design of multidiameter has increased the rigidity of polishing wheel main shaft, and is convenient to the fixedly position of innermost layer emery cloth wheel; Adopt the design of a plurality of emery cloth wheels, can process varigrained emery cloth wheel, and form a plurality of polishings space, after the abrasive particle in a polishing space uses up, can be changed to next space through selecting varigrained abrasive band paper; Adopt petal emery cloth wheel, can reduce the hardness of emery cloth, increased the flexibility of emery cloth wheel, help heat radiation simultaneously, the blade intake and exhaust limit of avoiding burning.
Description of drawings
Fig. 1 is the front view of the utility model;
Fig. 2 is the vertical view of the utility model;
Fig. 3 is the polishing process of the utility model;
Wherein: 1. multidiameter; 2. emery cloth is taken turns; 3. pad; 4. setscrew nut.
The specific embodiment
Below in conjunction with specific embodiment the utility model is described.
Present embodiment is the petal-shaped polishing wheel that is used for blade of aviation engine intake and exhaust edge polishing, comprises multidiameter 1, emery cloth wheel 2, pad 3 and setscrew nut 4.
Emery cloth wheel 2 bonding the forming of non-burnishing surface by two circular abrasive band paper can guarantee that like this both sides rounded face of emery cloth wheel 2 all has abrasive particle.Through selecting the different abrasive band paper of granularity, can be made into the emery cloth wheel 2 of multiple granularity.To comprise that in polishing wheel at least two emery cloth wheels 2 can form the polishing space, adopt four emery cloth wheels 2 in the present embodiment, form 3 polishing spaces altogether, after the abrasive particle in a polishing space uses up, can be changed to next space and work on.All emery cloths wheel 2 all coaxial thread segments that are enclosed within multidiameter 1 are with pad 3 between adjacent two emery cloths wheel 2, and cylindric pad 3 is processed by elastomeric material, has certain elasticity.The thickness of pad 3 equals polished blade intake and exhaust limit thickness, pad 3 diameters be emery cloth take turns 2 diameters 1/5.The position of each layer emery cloth wheel 2 has been fixed in the use of pad.Take turns at the outermost layer emery cloth on the thread segment in 2 outsides and be with setscrew nut 4, setscrew nut 4 is fixing on multidiameter 1 with emery cloth wheel 2.
Along the circumferential direction whenever at a distance from the circle ring sector of 10 ° of central angles of 35 ° of central angle excisions, wherein the circle ring sector root radius equals the pad radius to all emery cloth wheels, like this emery cloth wheel is cut into petal-shaped, and is as shown in Figure 2.When polishing wheel ran up use, the design of petal shape had reduced the hardness of emery cloth wheel 2, had increased the flexibility of emery cloth wheel 2, also helped heat radiation simultaneously, the blade intake and exhaust limit of avoiding burning.
Claims (2)
1. a polishing wheel that is used to polish blade intake and exhaust limit is characterized in that: comprise multidiameter, pad, emery cloth wheel and setscrew nut; Multidiameter is the thin three-stage structures in thick two ends, stage casing, and the axial length of three-stage structure is identical, and one section thin diameter segment wherein is a thread segment; The emery cloth wheel is by bonding the forming of non-burnishing surface of two circular abrasive band paper, and emery cloth wheel both sides rounded face all has abrasive particle; Said polishing wheel comprises at least two emery cloth wheels; The coaxial multidiameter thread segment that is enclosed within of all emery cloth wheels is with pad between adjacent two emery cloths wheel, and spacer thickness equals polished blade intake and exhaust limit thickness, and the pad diameter is 1/5～2/5 of an emery cloth wheel diameter; Be with setscrew nut on the thread segment in the outermost layer emery cloth wheel outside, setscrew nut is fixing on multidiameter with the emery cloth wheel.
2. a kind of polishing wheel that is used to polish blade intake and exhaust limit according to claim 1; It is characterized in that: along the circumferential direction whenever at a distance from the circle ring sector of 10 ° of central angles of 35 ° of central angle excisions, wherein the circle ring sector root radius equals the pad radius on the emery cloth wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202599851U CN202219460U (en) | 2011-07-21 | 2011-07-21 | Polishing wheel for polishing air inlet and exhaust edges of blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202599851U CN202219460U (en) | 2011-07-21 | 2011-07-21 | Polishing wheel for polishing air inlet and exhaust edges of blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202219460U true CN202219460U (en) | 2012-05-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202599851U Expired - Fee Related CN202219460U (en) | 2011-07-21 | 2011-07-21 | Polishing wheel for polishing air inlet and exhaust edges of blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202219460U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106965102A (en) * | 2017-05-24 | 2017-07-21 | 上海赤焰研磨材料有限公司 | A kind of new cross polishing wheel |
| CN108025416A (en) * | 2015-09-08 | 2018-05-11 | 3M创新有限公司 | Flexible grinding throw |
| CN114083390A (en) * | 2021-11-26 | 2022-02-25 | 天津津航技术物理研究所 | Aspheric surface grinding device and aspheric surface processing method |
| CN114789392A (en) * | 2022-05-05 | 2022-07-26 | 中国航发航空科技股份有限公司 | Polishing wheel and polishing method for blade damping platform of aircraft engine |
-
2011
- 2011-07-21 CN CN2011202599851U patent/CN202219460U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108025416A (en) * | 2015-09-08 | 2018-05-11 | 3M创新有限公司 | Flexible grinding throw |
| CN106965102A (en) * | 2017-05-24 | 2017-07-21 | 上海赤焰研磨材料有限公司 | A kind of new cross polishing wheel |
| CN114083390A (en) * | 2021-11-26 | 2022-02-25 | 天津津航技术物理研究所 | Aspheric surface grinding device and aspheric surface processing method |
| CN114789392A (en) * | 2022-05-05 | 2022-07-26 | 中国航发航空科技股份有限公司 | Polishing wheel and polishing method for blade damping platform of aircraft engine |
| CN114789392B (en) * | 2022-05-05 | 2024-06-11 | 中国航发航空科技股份有限公司 | Polishing wheel and polishing method for aero-engine blade damping table |
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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 |
Granted publication date: 20120516 Termination date: 20140721 |
|
| EXPY | Termination of patent right or utility model |