CN1332139C - Shaft mounted brake disk of SiC granule enhanced aluminium based composite material - Google Patents
Shaft mounted brake disk of SiC granule enhanced aluminium based composite material Download PDFInfo
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- CN1332139C CN1332139C CNB2005100866965A CN200510086696A CN1332139C CN 1332139 C CN1332139 C CN 1332139C CN B2005100866965 A CNB2005100866965 A CN B2005100866965A CN 200510086696 A CN200510086696 A CN 200510086696A CN 1332139 C CN1332139 C CN 1332139C
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- radiating fin
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- tabular
- arc
- radiating ribs
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Abstract
The present invention relates to a shaft mounted braking disk made of SiC granule enhanced aluminum basic composite materials, which is composed of an upper friction disk surface, a lower friction disk surface, radiating ribs and a flange, wherein the radiating ribs are divided into 6 forms, five T-shaped radiating posts are evenly distributed on circles with the diameters phi of 600mm on the friction disks, five post-shaped radiating ribs are evenly distributed between every two T-shaped radiating posts, thirty post-shaped radiating ribs are distributed on a circumference with the diameter phi of 532mm and are divided into five groups to be distributed between the two T-shaped radiating ribs, and six post-shaped radiating ribs are in one group; ten plate-shaped radiating ribs are positioned on a circle with the diameter phi of 420mm and are divided into five groups to be distributed along a circumferential direction, and two plate-shaped radiating ribs are in one group; twenty plate-shaped radiating ribs are positioned on a circle with the diameter phi of 454mm and are divided into five groups to be distributed along a circumferential direction, and four plate-shaped radiating ribs are in one group; five arc-shaped radiating ribs are evenly distributed along the inner circles of the friction disks, and the flange of the braking disk is integral with the arc-shaped radiating ribs. A shaft is upwards positioned at the middle of the arc-shaped radiating ribs and is provided with a through groove connected with hub bolts. The present invention reduces the windage loss of the braking disk, improves heat dissipation effect, reduces heat stress, enhances mechanical strength between the flange and the friction disks and largely eliminates the cast defect of the inside of the braking disk.
Description
Technical field
The present invention relates to a kind of shaft-mounted aluminum matrix composite brake disc, be applicable to the bullet train of 200km/h.
Technical background
Disc braking is one of important mode of braking of train, and the development of bullet train is had higher requirement to quality of materials, life-span and the safety reliability of brake disc.At present extensive use of brake disc is iron and steel class material, exists the big essential disadvantages of density, and thermal conductivity is relatively poor, causes the thermal stress that produces in the brake disc braking process bigger, and temperature rise is higher, and card is easy to generate hot spot; Wriggle iron material, alloy cast iron or the iron material brake disc noise in braking process of wriggling is very big.At present in order to overcome above-mentioned shortcoming, Japan, France, Germany, Britain, the U.S. are all at the Al-alloy based composite brake dish of research and development, have bibliographical information Japan, Germany, the U.S. etc. to develop the aluminum matrix composite brake disc, yet various countries are all maintained secrecy to the structure and the forming method of brake disc.
Have document to show, when train speed was lower than 160km/h, the radiating fin of ferrous materials brake disc all adopted platy structure at present, and with the reinforcement result of ventilating heat dissipation, but this structure has the big shortcoming of windage loss; Radiating fin adopts column structure more when train speed is higher than 200km/h, and with the reduction windage loss, but radiating effect weakens simultaneously.
Summary of the invention
Technical problem to be solved of the present invention: the shaft-mounted aluminum matrix composite brake disc that a kind of 200km/h of satisfying braking condition is provided.
Technological scheme of the present invention:
The invention provides a kind of shaft mounted brake disk of SiC granule enhanced aluminium based composite material, brake disc is made of the card that rubs up and down, radiating fin and flange.Wherein radiating fin has 6 kinds of structural types: 5 T shape heat dissipation columns are distributed on the circle of friction disk Ф 600mm, uniform 5 column radiating fin between per 2 T shape heat dissipation columns, 30 column radiating fin are distributed on the circumference of Ф 532mm, and by 6 one group, be distributed between 2 T shape heat dissipation columns, 10 tabular radiating fin are positioned on the circle of Ф 420mm, and by 2 one group, be divided into 5 groups along circumferentially uniform, 20 tabular radiating fin are positioned on the circle of Ф 454mm, according to 4 one group, be divided into 5 groups along circumferentially uniform, 5 arc radiating fin evenly distribute along the friction disk inner ring; Brake disc flange and arc heat dissipation column one are located axially at arc heat dissipation column middle part, and offer and be used for the groove that is connected with boss bolt.
The material that brake disc of the present invention adopts is an application number 2,005 10011526.0, denomination of invention: the SiC particle enhanced aluminum-based composite material of " a kind of vacuum mechanical dual-stirring casting method for preparing particle enhanced aluminum-based composite material " preparation; Brake disc forming method and equipment are application number 2,004 10009617.6, denomination of invention: " a kind of pressure-adjusting casting method and pressure regulation crucible ".
Beneficial effect of the present invention:
Column structure is adopted in the radiating fin outer ring of brake disc, the inner platy structure that adopts, the distribution form of heat radiation gusset makes brake disc ambient air stream can flow into and flow out brake disc smoothly, when below 200km/h, braking, the tabular radiating fin of inner ring neither increases windage loss, improved result of ventilating heat dissipation simultaneously, the temperature of brake disk surface is reduced to 210 ℃ by 320 ℃ of complete tabular radiating fin structure during braking;
Flange is made up of 5 parts, fuse with 5 arc radiating fin respectively, reduce the circumferential coupling stiffness between the flange each several part, reduce the thermal stress in the braking process, simultaneously adopt the R6 round-corner transition to be connected between flange and the friction disk, with the mechanical strength between enhancing flange and the friction disk.By analog computation under the 200km/m braking condition, its stress drop is to 131MPa;
The structure shape and the determining dimensions of T shape radiating fin have taken into full account in the brake disc casting process wall thickness uniform requirement of trying one's best, and by brake disc moulding and solidification simulation, can eliminate thermal center, eliminate the cast inside defective of brake disc to greatest extent.
Description of drawings
Fig. 1 is the shaft mounted brake disk of SiC granule enhanced aluminium based composite material structural representation.
Fig. 2 is the distributed architecture schematic representation of radiating fin.
Fig. 3 is a T shape radiating fin cross section profile schematic representation.
Fig. 4 is arc radiating fin and flange arrangement schematic representation.
Fig. 5 is an arc radiating fin cross section profile schematic representation.
Fig. 6 is a flange cross section profile schematic representation.
Among the figure, the card that rubs on 1,2 times friction cards, 3,3aT shape radiating fin, 4 column radiating fin, 5,5a column radiating fin, 6, the tabular radiating fin of 6a, 7, the tabular radiating fin of 7a, 8,8a arc radiating fin, 9 flanges.
Embodiment
The present invention will be further described in conjunction with the accompanying drawings:
A kind of shaft mounted brake disk of SiC granule enhanced aluminium based composite material is seen figure one, comprises the card 1,2 that rubs up and down, radiating fin 3,4,5,6,7,8 six kinds of forms and flanges 9.
The thickness 32mm of the card that rubs up and down 1,2, the height of all radiating fin is 46mm, external diameter Ф 640mm, internal diameter Φ 334mm;
Radiating fin is divided into 6 kinds of forms, T shape radiating fin 3, and column radiating fin 4, column radiating fin 5, tabular radiating fin 6, tabular radiating fin 7 and arc radiating fin 8 highly are 46mm:
5 T shape radiating fin 3 are distributed in the outer ring of brake disc, the centre symmetry line radially direct of T shape radiating fin 3, the cross section centre of form is positioned on the circle of Φ 600mm, the cross section profile of T shape radiating fin 3 is formed by connecting by the circular arc sealing of R7-R21-R7-R35-R16-R35-R7-R21-R7, connect with the R6 round-corner transition between T shape radiating fin 3 and the friction card 1,2;
4 five one group of 25 column radiating fin, 5 every group are distributed between two T shape radiating fin 3, and cross section profile is the ellipse of 17mm * 10mm, its centre of form is positioned on the circumference of Φ 608mm, minor axis radially direct, column radiating fin 4 connect with the R6 round-corner transition between the card 1,2 with rubbing up and down;
The cross section profile of column radiating fin 5 is the ellipse of 14mm * 10mm, its centre of form is positioned on the circumference of Φ 532mm, 5 six one group of 30 column radiating fin, be distributed between two T shape radiating fin 3, wherein the minor axis of column radiating fin 5a and T shape radiating fin 3a centre symmetry line angle are 10 °, the minor axis angle of per two column radiating fin 5 is 10.28 °, and column radiating fin 5 connects with the R6 round-corner transition between the card 1,2 with rubbing up and down.
Tabular radiating fin 6 cross section profiles are the ellipse of 30m * 7mm, its cross section centre of form is positioned on the circle of Φ 420mm, 6 two one group of 10 tabular radiating fin, be divided into 5 groups along circumferentially uniform, the major cross-sectional axis angle of every group of two tabular radiating fin 6 is 12 °, the angle of wherein tabular radiating fin 6a major cross-sectional axis and T shape radiating fin 3a centre symmetry line is 30 °, and tabular radiating fin 6 connects with the R6 round-corner transition between the card 1,2 with rubbing up and down.
Tabular radiating fin 7 cross section profiles are the ellipse of 20mm * 5mm, its cross section centre of form is positioned on the circle of Ф 454mm, 20 tabular radiating fin 7 quaternions, be divided into 5 groups along circumferentially uniform, the major cross-sectional axis angle of every group of 2 tabular radiating fin 7 is 10.28 °, the angle of wherein tabular radiating fin 7a major cross-sectional axis and T shape radiating fin 3a centre symmetry line is 5.14 °, and tabular radiating fin 7 connects with the R6 round-corner transition between the card 1,2 with rubbing up and down.
5 arc radiating fin 8 are along circumferentially uniform, and wherein arc radiating fin 8a overlaps with T shape radiating fin 3a symmetrical line, and arc radiating fin 8 cross section profiles are arc, are formed by connecting by the sealing of R13-R160-R13-R175 circular arc; Arc radiating fin 8 is connected with the R6 round-corner transition between the card with rubbing up and down.
Brake disc flange 9 is connected with the R6 round-corner transition with arc radiating fin 8, highly is 32mm, and internal diameter is Φ 234mm, and cross-sectional profiles is a U-shaped, and the middle part is offered and dark is used for being connected with boss bolt for the groove of 23mm for 40mm is wide.
The size of the unit of mark, unit is mm.
Claims (3)
1. a shaft mounted brake disk of SiC granule enhanced aluminium based composite material comprises the card that rubs up and down, radiating fin and flange, it is characterized in that:
The thickness 32mm of the card that rubs up and down (1,2), external diameter Φ 640mm, internal diameter Φ 334mm;
Radiating fin is divided into six kinds of forms, T shape radiating fin (3), and column radiating fin (4), column radiating fin (5), tabular radiating fin (6), tabular radiating fin (7) and arc radiating fin (8) highly are 46mm;
5 T shape radiating fin (3) are distributed in the outer ring of brake disc, and the centre symmetry line radially direct of T shape radiating fin (3), the cross section centre of form are positioned on the circle of Φ 600mm, connect with the R6 round-corner transition between T shape radiating fin (3) and the friction card (1,2);
(4) 5 one group of 25 column radiating fin, every group 5 are distributed between 2 T shape radiating fin (3), cross section profile is the ellipse of 17mm * 10mm, its centre of form is positioned on the circumference of Φ 608mm, the minor axis radially direct, column radiating fin (4) connects with the R6 round-corner transition between the card (1,2) with rubbing up and down;
The cross section profile of column radiating fin (5) is the ellipse of 14mm * 10mm, its centre of form is positioned on the circumference of Φ 532mm, (5) six one group of 30 column radiating fin, be distributed between two T shape radiating fin (3), wherein the minor axis of column radiating fin (5a) and T shape radiating fin (3a) centre symmetry line angle are 10 °, the minor axis angle of per 2 column radiating fin (5) is 10.28 °, and column radiating fin (5) connects with the R6 round-corner transition between the card (1,2) with rubbing up and down;
Tabular radiating fin (6) cross section profile is the ellipse of 30mm * 7mm, its cross section centre of form is positioned on the circle of Φ 420mm, (6) two one group of 10 tabular radiating fin, be divided into 5 groups along circumferentially uniform, the major cross-sectional axis angle of every group 2 tabular radiating fin (6) is 12 °, the angle of wherein tabular radiating fin (6a) major cross-sectional axis and T shape radiating fin (3a) centre symmetry line is 30 °, and tabular radiating fin (6) connects with the R6 round-corner transition between the card (1,2) with rubbing up and down;
Tabular radiating fin (7) cross section profile is the ellipse of 20mm * 5mm, its cross section centre of form is positioned on the circle of Φ 454mm, (7) 4 one group of 20 tabular radiating fin, be divided into 5 groups along circumferentially uniform, the major cross-sectional axis angle of every group 2 tabular radiating fin (7) is 10.28 °, the angle of wherein tabular radiating fin (7a) major cross-sectional axis and T shape radiating fin (3a) centre symmetry line is 5.14 °, and tabular radiating fin (7) connects with the R6 round-corner transition between the card (1,2) with rubbing up and down;
5 arc radiating fin (8) are along circumferentially uniform, and wherein arc radiating fin (8a) overlaps with T shape radiating fin (3a) symmetrical line; Arc radiating fin (8) is connected with the R6 round-corner transition between the card with rubbing up and down;
Brake disc flange (9) is connected with the R6 round-corner transition with arc radiating fin (8), highly is 32mm, and internal diameter is Φ 234mm, and cross-sectional profiles is a U-shaped, and the middle part is offered and dark is used for being connected with boss bolt for the groove of 23mm for 40mm is wide.
2. according to claim 1, it is characterized in that the cross section profile of T shape radiating fin (3) is formed by connecting by the circular arc sealing of R7-R21-R7-R35-R16-R35-R7-R21-R7.
3. according to claim 1, it is characterized in that arc radiating fin (8) cross section profile is an arc, be formed by connecting by the sealing of R13-R160-R13-R175 circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100866965A CN1332139C (en) | 2005-10-24 | 2005-10-24 | Shaft mounted brake disk of SiC granule enhanced aluminium based composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100866965A CN1332139C (en) | 2005-10-24 | 2005-10-24 | Shaft mounted brake disk of SiC granule enhanced aluminium based composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1786507A CN1786507A (en) | 2006-06-14 |
| CN1332139C true CN1332139C (en) | 2007-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100866965A Expired - Fee Related CN1332139C (en) | 2005-10-24 | 2005-10-24 | Shaft mounted brake disk of SiC granule enhanced aluminium based composite material |
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| Country | Link |
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| CN (1) | CN1332139C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788029A (en) * | 2010-03-09 | 2010-07-28 | 北京交通大学 | Brake disc with double layers of flanges for railway vehicle |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865223A (en) * | 2010-06-07 | 2010-10-20 | 北京交通大学 | Shaft-mounted structure constraint-release brake disc for railway vehicle |
| CN104235237B (en) * | 2014-05-09 | 2017-05-10 | 石家庄东大汇通新材料有限公司 | Brake disc made of carborundum foamed ceramics/aluminum alloy composite materials and production method of road vehicle brake disc |
| CN106812834A (en) * | 2015-11-30 | 2017-06-09 | 江苏鼎泰工程材料有限公司 | A kind of axle-mounted brake disk and its manufacture method |
| CN105587805B (en) * | 2016-01-26 | 2018-08-14 | 北京交通大学 | A kind of spliced anti-reflex action axle-mounted brake disk |
| CN108547887B (en) * | 2018-04-12 | 2020-05-01 | 北京天宜上佳高新材料股份有限公司 | Inorganic salt reinforced aluminum alloy composite material, self-cooling brake disc prepared from inorganic salt reinforced aluminum alloy composite material and preparation method |
| CN109058329B (en) * | 2018-09-05 | 2020-01-21 | 北京交通大学 | Aluminum-based composite material shaft-mounted brake disc |
| CN108999898A (en) * | 2018-10-11 | 2018-12-14 | 南京中盛铁路车辆配件有限公司 | Bullet train axle-mounted brake disk |
| CN109236904B (en) | 2018-11-23 | 2020-02-07 | 湖南世鑫新材料有限公司 | Full-carbon ceramic shaft-mounted brake disc |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19957484A1 (en) * | 1999-11-23 | 2001-06-13 | Mannesmann Ag | Internally ventilated brake disk for high speed trains has air inlets and outlets with seating and cooperating seal which is raised above the seating, e.g. by thermal expansion, when temperature of disk rises |
| CN1385628A (en) * | 2002-02-27 | 2002-12-18 | 铁道科学研究院机车车辆研究所 | Material for brake disc of high-speed train |
| CN2586846Y (en) * | 2001-03-20 | 2003-11-19 | 叶德隆 | Disc type brake wheel structure |
-
2005
- 2005-10-24 CN CNB2005100866965A patent/CN1332139C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19957484A1 (en) * | 1999-11-23 | 2001-06-13 | Mannesmann Ag | Internally ventilated brake disk for high speed trains has air inlets and outlets with seating and cooperating seal which is raised above the seating, e.g. by thermal expansion, when temperature of disk rises |
| CN2586846Y (en) * | 2001-03-20 | 2003-11-19 | 叶德隆 | Disc type brake wheel structure |
| CN1385628A (en) * | 2002-02-27 | 2002-12-18 | 铁道科学研究院机车车辆研究所 | Material for brake disc of high-speed train |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788029A (en) * | 2010-03-09 | 2010-07-28 | 北京交通大学 | Brake disc with double layers of flanges for railway vehicle |
| CN101788029B (en) * | 2010-03-09 | 2011-11-09 | 北京交通大学 | Brake disc with double layers of flanges for railway vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1786507A (en) | 2006-06-14 |
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