CN203404288U - Airplane charcoal brake disk steel clip - Google Patents
Airplane charcoal brake disk steel clip Download PDFInfo
- Publication number
- CN203404288U CN203404288U CN201320488403.6U CN201320488403U CN203404288U CN 203404288 U CN203404288 U CN 203404288U CN 201320488403 U CN201320488403 U CN 201320488403U CN 203404288 U CN203404288 U CN 203404288U
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- brake disc
- circular fixed
- fixed hole
- charcoal
- airplane
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Abstract
The utility model discloses an airplane charcoal brake disk steel clip which comprises an arc bent U-shaped clip body. The bottom of the U-shaped clip body is attached to the end of a key tooth at the periphery of an airplane charcoal brake disk, the lateral side of the U-shaped clip body is attached to the lateral side of the key tooth, the two lateral sides of the U-shaped clip body are in arc shapes identical with the curvature of the key tooth arranged at the installation position of the airplane charcoal brake disk, three first round fixing holes are formed in one lateral side of the U-shaped clip body, second round fixing holes are formed in the other lateral side of the U-shaped clip body, the sizes of the first round fixing holes are equal to the sizes of the second round fixing holes, the first round fixing holes and the second round fixing holes are oppositely arranged, the circle centers of the three first round fixing holes are connected to form a first arc, the circle centers of the three second round fixing holes are connected to form a second arc, and the curvature of the first arc and the curvature of the second arc are identical with the curvature of the key tooth arranged at the installation position of the airplane charcoal brake disk. The airplane charcoal brake disk steel clip is well suitable for A320 series airplane charcoal brake disks and can protect key teeth of the charcoal brake disks.
Description
Technical field
The utility model belongs to aviation machine technical field, specifically relates to a kind of plane charcoal brake disc steel clip.
Background technique
Steel clamp is one of Force transmission parts of airplane carbon brake disc; the main intermal force that rises; protection airplane carbon brake disc key tooth: torsion is delivered on the driving key of wheel by steel clamp; make torsion be evenly distributed on carbon/carbon brake disc simultaneously; thereby reduced the extruding main force, avoided the damage of airplane carbon brake disc.Due to the existence of steel clamp, avoided driving key directly to contact with carbon/carbon brake disc, in (in lifetime) brake impact process of several thousand times, reduced the wearing and tearing to airplane carbon brake disc.
A320 series aircraft brake energy is larger, and it is more complicated that carbon/carbon brake disc temperature field distributes, and steel clamp Environmental Conditions is severe, requires the steel clamp can long-term work under the high temperature of 500 ℃～800 ℃ and complex stress, and has good reliability.According to investigating and report discovery, airplane carbon brake disc in use often occurs that steel clamp damage causes airplane carbon brake disc can not use the situation in longevity.The A320 series aircraft carbon/carbon brake disc state exogenesis factory first generation to the four generations carbon/carbon brake disc Moving plate steel clamp all adopts Bao Liansi nail formula structure (as shown in Figure 1), its wrapped position is the periphery of carbon/carbon brake disc, because charcoal key tooth is different from the modulus of steel clamp material, and during just assembling, the Length Ratio charcoal key tine length of steel clamp is long, most of masterpiece is used on steel clamp end face, and then acts on rivet.In the process of revolving of having braked, carbon/carbon brake disc had both been subject to load impacting power, be subject to again high/low-temperature impact, make the little limit of steel clamp very easily produce plastic deformation or crack, fall the defects such as piece, thereby make carbon/carbon brake disc key tooth end face edge be easy to squeezed evil idea or produce larger wearing and tearing, notch broadens, and when its notch wear extent is greater than 0.5mm, just cannot use, and has had a strong impact on the working life of carbon/carbon brake disc.The 5th generation A320 Series Carbon brake disc Moving plate steel clamp is used two H structures (as shown in Figure 2) instead, this structure steel clamp end face does not contact with key increment face, gap is approximately 2.7mm～3.0mm, by steel clamp, driving force is delivered on rivet, passes to charcoal dish rivet hole afterwards by rivet.After long-term use, rivet easily deforms or extracts, and during macro-energy brake, easily causes rivet to be subject to steel clamp shearing force and ruptures; Charcoal dish rivet hole impacts because standing for a long time rivet, can be expanded into gradually ellipse, has strengthened the maintenance difficulty of airplane carbon brake disc.
Application number is that 200620148619.8 Chinese patent discloses a kind of " plane charcoal brake disc steel clip ", its main body is U-shaped structure, and specifically disclose on the both sides that form U-shaped main structure body and all have two apertures, be used for steel clamp to be fixed on carbon/carbon brake disc, in use there is following shortcoming in the steel clamp of this structure: (1) is two because forming the quantity of aperture on the both sides of U-shaped main structure body, when keyway is during with several angle, steel clamp is subject to outside component, in the situation that Aircraft Load is larger, rivet away from steel clamp bottom easily destroys, after long-term use, rivet easily deforms or extracts, when serious, charcoal dish causes charcoal key teeth material disappearance because standing for a long time rotary component.Because steel clamp rivet hole is around the dangerous interface that stress is concentrated and concentration of energy is serious, be subject to the restriction of steel clamp wall thickness, this little ， aperture, cross section, place is again little, therefore in aperture, easily germinates crackle around, and then crackle is expanded along vulnerable area, until fracture.(2) in order to reduce to be subject to the impact of rotary component, generally the two rivet hole lines of centres of two hole structure steel clamps need be 90 ° of structures with the U-shaped bottom surface of steel clamp, but be subject to the restriction of A320 series aircraft carbon/carbon brake disc tooth thickness degree, can not realize the U-shaped bottom surface of the rivet hole line of centres and steel clamp and be the designing requirement of 90 °, add that A320 series aircraft brake energy is large, two hole steel clamps of the non-90 ° of structures of rivet hole line can not meet usage requirement, easily break down.(3) rivet hole of this steel clamp is the through hole of drawing nest with 90 °, supporting 90 ° of sunk head rivets are used, generally, sunk head rivet is for smooth surface and carry little occasion, but because A320 series aircraft load is large, wheel quantity is few, in brake process, produce vibration larger simultaneously, therefore more strict to steel clamp, rivet and matching requirements thereof, only guaranteed enough laminatings, just can better be by power transmission; Because this steel clamp wall thickness only has 2.0mm～3.0mm, the straight section that band stroke nest structure steel clamp rivet contacts with steel clamp is less, can not be well by power transmission; Simultaneously in process of manufacture, due to clamping precision, tool wear and personal factor, to cause steel clamp to draw nest deep mixed, is difficult to guarantee the conformity of steel clamp quality.Draw nest excessively shallow, sunk head rivet can not finely be sunken in hole, does not have fastening effect during use; Draw nest excessively dark, the straightway area that sunk head rivet contacts with steel clamp reduces, and limit, steel clamp hole is weaker, easily ruptures.Therefore according to being with 90 ° strokes of nest rivet design counterbores to be just unfavorable for A320 series aircraft carbon/carbon brake disc Environmental Conditions.
Model utility content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art; a kind of plane charcoal brake disc steel clip is provided; it is simple in structure, reasonable in design and using effect is good; can well be applicable to the A320 series aircraft carbon/carbon brake disc that energy is larger; make it more tight, reliable with being connected of airplane carbon brake disc; effectively protected carbon/carbon brake disc key tooth; reduced the destroyed probability of carbon/carbon brake disc key tooth; thereby improved the working life of airplane carbon brake disc; production technology is simple simultaneously, has the high temperature resistant and strong feature of abrasion resistance properties.
For achieving the above object, the technical solution adopted in the utility model is: a kind of plane charcoal brake disc steel clip, it is characterized in that: the U-shaped clamp that comprises circular arc bending, the end of the key tooth on the bottom of described U-shaped clamp and airplane carbon brake disc circumference fits, the sidepiece of the sidepiece of described U-shaped clamp and key tooth fits, and the shape of the both sides of described U-shaped clamp is the circular arc identical with airplane carbon brake disc installation place key tooth curvature, on a sidepiece of described U-shaped clamp, have the first circular fixed hole, on another sidepiece of described U-shaped clamp, have the second circular fixed hole, the equal and opposite in direction of described the first circular fixed hole and the second circular fixed hole and being oppositely arranged, the quantity of described the first circular fixed hole and the second circular fixed hole equates and is three, the circle center line connecting of three described the first circular fixed holes forms the first circular arc, the circle center line connecting of three described the second circular fixed holes forms the second circular arc, the curvature of described the first circular arc and the second circular arc is all identical with the curvature of airplane carbon brake disc installation place key tooth.
Above-mentioned a kind of plane charcoal brake disc steel clip, is characterized in that: described the first circular fixed hole and the second circular fixed hole are manhole.
Above-mentioned a kind of plane charcoal brake disc steel clip, it is characterized in that: described U-shaped clamp is fixedly connected with key tooth through the flathead rivet through the first circular fixed hole and the second circular fixed hole, and the fit up gap of described flathead rivet and the first circular fixed hole and the second circular fixed hole is 0.10mm～0.40mm.
Above-mentioned a kind of plane charcoal brake disc steel clip, is characterized in that: three described the first circular fixed holes evenly arrange, and three described the second circular fixed holes evenly arrange.
Above-mentioned a kind of plane charcoal brake disc steel clip, is characterized in that: the thickness of described U-shaped clamp is 2.0mm～3.0mm.
Above-mentioned a kind of plane charcoal brake disc steel clip, is characterized in that: the bottom width a of described U-shaped clamp is 12.0mm～13.0mm.
Above-mentioned a kind of plane charcoal brake disc steel clip, is characterized in that: described U-shaped clamp is 2Cr13 Stainless Steel U clamp.
The utility model compared with prior art has the following advantages:
1, the utility model is simple in structure, reasonable in design and using effect is good.
2, the utility model by having three the first circular fixed holes on a sidepiece of U-shaped clamp, on another sidepiece of U-shaped clamp, have three the second circular fixed holes, and the equal and opposite in direction of the first circular fixed hole and the second circular fixed hole is also oppositely arranged, the circle center line connecting of three the first circular fixed holes forms the first circular arc simultaneously, the circle center line connecting of three the second circular fixed holes forms the second circular arc, the curvature of the first circular arc and the second circular arc is all identical with the curvature of airplane carbon brake disc installation place key tooth, not only effectively prevented from adopting two hole designs because rotary component produces, steel clamp to be rotated, and prevented from being subject to, after heavy shock loads repeated action, steel clamp rivet hole crimping occurs, loosing of rivet and rivet hole circumferential crack situation, improved the connection reliability of steel clamp and airplane carbon brake disc.
3, the utility model is followed closely formula structure carbon/carbon brake disc Moving plate steel clamp and simple, the more economical practicality of two H structure carbon/carbon brake disc Moving plate steel clamp production technology with respect to Bao Liansi, and has the high temperature resistant and strong feature of abrasion resistance properties.
4, the utility model is guaranteeing on the basis consistent with the bent rule of charcoal key tooth circumference according to the length of the corresponding increase steel clamp in the position of three circular fixed holes, steel clamp length with respect to two hole structures in prior art increases, the corresponding like this volume that also increases steel clamp, thereby reduced the energy in per unit volume, improved steel clamp resistance to shock loads ability, and fastening for steel clamp, prevent that loosening is also favourable.
5, the utility model is all designed to manhole by the first circular fixed hole and the second circular fixed hole, and adopt flathead rivet that steel clamp is connected with airplane carbon brake disc, flathead rivet and rivet hole in loading process are better fitted, increase stressed cross section, effectively prevented from being subject to occurring after heavy shock loads repeated action the situation of steel clamp rivet hole crimping, loosing of rivet and rivet hole circumferential crack.
Below by drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of Bao Liansi nail formula structure carbon/carbon brake disc Moving plate steel clamp in prior art.
Fig. 2 is the structural representation of two H structure carbon/carbon brake disc Moving plate steel clamps in prior art.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is the plan view of Fig. 3.
Fig. 5 is use phase diagram of the present utility model.
Fig. 6 is the A-A sectional view of Fig. 5.
Description of reference numerals:
1-U-shaped clamp; 2-key tooth; The 3-the first circular fixed hole;
The 4-the second circular fixed hole; 5-flathead rivet.
Embodiment
As shown in Figures 3 to 6, the utility model comprises the U-shaped clamp 1 of circular arc bending, the end of the key tooth 2 on the bottom of described U-shaped clamp 1 and airplane carbon brake disc circumference fits, the sidepiece of the sidepiece of described U-shaped clamp 1 and key tooth 2 fits, and the shape of the both sides of described U-shaped clamp 1 is the circular arc identical with airplane carbon brake disc installation place key tooth 2 curvature, on a sidepiece of described U-shaped clamp 1, have the first circular fixed hole 3, on another sidepiece of described U-shaped clamp 1, have the second circular fixed hole 4, the equal and opposite in direction of described the first circular fixed hole 3 and the second circular fixed hole 4 and being oppositely arranged, the quantity of described the first circular fixed hole 3 and the second circular fixed hole 4 equates and is three, the circle center line connecting of three described the first circular fixed holes 3 forms the first circular arc, the circle center line connecting of three described the second circular fixed holes 4 forms the second circular arc, the curvature of described the first circular arc and the second circular arc is all identical with the curvature of airplane carbon brake disc installation place key tooth 2.
As shown in Figure 4, described the first circular fixed hole 3 and the second circular fixed hole 4 are manhole, and processing technology is simple, and precision easily guarantees.
As shown in Figure 5 and Figure 6, described U-shaped clamp 1 is fixedly connected with key tooth 2 through the flathead rivet 5 through the first circular fixed hole 3 and the second circular fixed hole 4, adopts flathead rivet 5 to improve the fastening ability of steel clamp, has effectively prevented that steel clamp is loosening.For the ease of riveting front installation flathead rivet and avoid the raw fault of squeezing bad steel clamp or airplane carbon brake disc of flathead rivet pier thick hair in revolving riveting process, prevent that empty riveting situation from occurring, the fit up gap that need to control described flathead rivet 5 and the first circular fixed hole 3 and the second circular fixed hole 4 is 0.10mm～0.40mm simultaneously.
As shown in Figures 3 to 6, three described the first circular fixed holes 3 evenly arrange, and three described the second circular fixed holes 4 evenly arrange, and processing technology is simple, is conducive to the transmission of power.
In the present embodiment, be subject to the impact of airplane carbon brake disc wear limit size, the adjacent plane charcoal brake disc steel clip fault that bumps after wear prevention, the thickness of described U-shaped clamp 1 is 2.0mm～3.0mm.
In the present embodiment, the bottom width a of described U-shaped clamp 1 is 12.0mm～13.0mm.Because steel clamp bottom directly contacts with wheel hub, so bottom it, lifting surface area design is more greatly more beneficial to power transmission, but is subject to the impact of charcoal key teeth size, and steel clamp bottom width is greater than 13mm will affect assembling.
In the present embodiment, described U-shaped clamp 1 is 2Cr13 Stainless Steel U clamp, and its material performance index meets the Environmental Conditions requirement of A320 series aircraft, and ample supply and prompt delivery, and buying is convenient, price relatively economical.
Working principle of the present utility model is: the steel clamp power that withstands shocks in brake process; then power is passed to key tooth 2; avoid impact force to directly act on key tooth 2, thereby play protected key tooth, reduce the destroyed probability of key tooth, improved the connection reliability of steel clamp and airplane carbon brake disc.The utility model by having three the first circular fixed holes 3 on a sidepiece of U-shaped clamp 1, on another sidepiece of U-shaped clamp 1, have three the second circular fixed holes 4, and the equal and opposite in direction of the first circular fixed hole 3 and the second circular fixed hole 4 is also oppositely arranged, the circle center line connecting of three the first circular fixed holes 3 forms the first circular arc simultaneously, the circle center line connecting of three the second circular fixed holes 4 forms the second circular arc, the curvature of the first circular arc and the second circular arc is all identical with the curvature of airplane carbon brake disc installation place key tooth 2, not only effectively prevented from adopting two hole designs because rotary component produces, steel clamp to be rotated, and prevented from being subject to, after heavy shock loads repeated action, steel clamp rivet hole crimping occurs, loosing of rivet and rivet hole circumferential crack situation, improved the connection reliability of steel clamp and airplane carbon brake disc, simultaneously simple with respect to Bao Liansi nail formula structure carbon/carbon brake disc Moving plate steel clamp and two H structure carbon/carbon brake disc Moving plate steel clamp production technology, more economical practicality.In addition, limited because of key tine length, as be designed to the above structure in four holes or four holes, hole pitch is less, and Kong Yukong connected trouble in use easily occurs, and causes airplane carbon brake disc to damage, and rivet is movable, and then steel clamp is fallen down.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation of above embodiment being done according to the utility model technical spirit, all still belongs in the protection domain of technical solutions of the utility model.
Claims (7)
1. a plane charcoal brake disc steel clip, it is characterized in that: the U-shaped clamp (1) that comprises circular arc bending, the end of the bottom of described U-shaped clamp (1) and the key tooth (2) on airplane carbon brake disc circumference fits, the sidepiece of the sidepiece of described U-shaped clamp (1) and key tooth (2) fits, and the shape of the both sides of described U-shaped clamp (1) is the circular arc identical with airplane carbon brake disc installation place key tooth (2) curvature, on a sidepiece of described U-shaped clamp (1), have the first circular fixed hole (3), on another sidepiece of described U-shaped clamp (1), have the second circular fixed hole (4), the equal and opposite in direction of described the first circular fixed hole (3) and the second circular fixed hole (4) and being oppositely arranged, the quantity of described the first circular fixed hole (3) and the second circular fixed hole (4) equates and is three, the circle center line connecting of three described the first circular fixed holes (3) forms the first circular arc, the circle center line connecting of three described the second circular fixed holes (4) forms the second circular arc, the curvature of described the first circular arc and the second circular arc is all identical with the curvature of airplane carbon brake disc installation place key tooth (2).
2. according to a kind of plane charcoal brake disc steel clip claimed in claim 1, it is characterized in that: described the first circular fixed hole (3) and the second circular fixed hole (4) are manhole.
3. according to a kind of plane charcoal brake disc steel clip described in claim 1 or 2, it is characterized in that: described U-shaped clamp (1) is fixedly connected with key tooth (2) through the flathead rivet (5) through the first circular fixed hole (3) and the second circular fixed hole (4), described flathead rivet (5) is 0.10mm～0.40mm with the fit up gap of the first circular fixed hole (3) and the second circular fixed hole (4).
4. according to a kind of plane charcoal brake disc steel clip described in claim 1 or 2, it is characterized in that: three described the first circular fixed holes (3) evenly arrange, three described the second circular fixed holes (4) evenly arrange.
5. according to a kind of plane charcoal brake disc steel clip described in claim 1 or 2, it is characterized in that: the thickness of described U-shaped clamp (1) is 2.0mm～3.0mm.
6. according to a kind of plane charcoal brake disc steel clip described in claim 1 or 2, it is characterized in that: the bottom width a of described U-shaped clamp (1) is 12.0mm～13.0mm.
7. according to a kind of plane charcoal brake disc steel clip described in claim 1 or 2, it is characterized in that: described U-shaped clamp (1) is 2Cr13 Stainless Steel U clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320488403.6U CN203404288U (en) | 2013-08-11 | 2013-08-11 | Airplane charcoal brake disk steel clip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320488403.6U CN203404288U (en) | 2013-08-11 | 2013-08-11 | Airplane charcoal brake disk steel clip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404288U true CN203404288U (en) | 2014-01-22 |
Family
ID=49940225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320488403.6U Expired - Lifetime CN203404288U (en) | 2013-08-11 | 2013-08-11 | Airplane charcoal brake disk steel clip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404288U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332265A (en) * | 2019-07-08 | 2019-10-15 | 西安航空制动科技有限公司 | A kind of concatermer monoblock type carbon brake Moving plate steel clamp |
| CN115108846A (en) * | 2022-05-19 | 2022-09-27 | 常州翊翔炭材科技有限公司 | Preparation method of aircraft carbon/carbon composite material brake disc |
-
2013
- 2013-08-11 CN CN201320488403.6U patent/CN203404288U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332265A (en) * | 2019-07-08 | 2019-10-15 | 西安航空制动科技有限公司 | A kind of concatermer monoblock type carbon brake Moving plate steel clamp |
| CN110332265B (en) * | 2019-07-08 | 2024-01-30 | 西安航空制动科技有限公司 | Multi-body integral carbon brake movable disc steel clamp |
| CN115108846A (en) * | 2022-05-19 | 2022-09-27 | 常州翊翔炭材科技有限公司 | Preparation method of aircraft carbon/carbon composite material brake disc |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |