CN203868196U - High-speed train brake disc with forced radiating ribs - Google Patents
High-speed train brake disc with forced radiating ribs Download PDFInfo
- Publication number
- CN203868196U CN203868196U CN201420188334.1U CN201420188334U CN203868196U CN 203868196 U CN203868196 U CN 203868196U CN 201420188334 U CN201420188334 U CN 201420188334U CN 203868196 U CN203868196 U CN 203868196U
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- Prior art keywords
- disk body
- radiating fin
- brake disc
- heat dissipation
- speed train
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Abstract
本实用新型公开了一种具有强制散热筋的高速列车制动盘，包括具有盘体摩擦面和盘体背面的盘体，在盘体上设置有盘体中孔和散热筋，所述散热筋为圆弧条状结构，该散热筋的圆弧半径R与盘体外径D之比R/D=0.4～0.6；散热筋的入流角β1=0～15°，散热筋的排流角β2=25～35°；相邻两散热筋之间形成通风槽，在该通风槽的底部设有通至盘体摩擦面的散热孔；所述散热筋的高度B2与盘体的厚度B1之比B2/B1=1.0～1.2。本实用新型的制动盘能实现散热空气场的强制引导，散热速度快，整体强度高，广泛适用于各类高速列车的制动系统中。
The utility model discloses a high-speed train brake disc with forced heat dissipation ribs, which comprises a disc body with a disc friction surface and a back side of the disc body. The disc body is provided with holes in the disc body and heat dissipation ribs. It is an arc strip structure, the ratio of the arc radius R of the heat dissipation rib to the outer diameter D of the plate R/D=0.4～0.6; the inflow angle of the heat dissipation rib β 1 =0～15°, the discharge angle of the heat dissipation rib β 2 =25～35°; a ventilation groove is formed between two adjacent heat dissipation ribs, and a heat dissipation hole leading to the friction surface of the disk body is provided at the bottom of the ventilation groove; the height B2 of the heat dissipation rib and the thickness B1 of the disk body Ratio B2/B1=1.0-1.2. The brake disc of the utility model can realize the forced guidance of the radiating air field, has fast radiating speed and high overall strength, and is widely applicable to braking systems of various high-speed trains.
Description
Technical field
The utility model relates to high-speed train braking device, relates in particular to the brake disc in high-speed train braking device.
Background technique
Along with the raising of train running speed, the braking force of train and braking temperature rise are also more and more higher.Be widely used because disc type brake has significant advantage at aspects such as braking force, the heat damages of minimizing wheel tread compared with other friction catch form, disc type brake has become bullet train and has finally realized the requisite brake riggings mode of stopping.
Disc type brake is to obtain braking force by the friction between brake disc and brake lining, once produce friction, the temperature at brake disc and brake lining Contact friction position just rises, and the faster temperature rise of car speed is just higher.Brake disc is subject to after frictional heating, and temperature raises and not only can cause the ablation on contact friction surface, and the thermal stress that friction pair interaction produces also can cause the thermal creep of brake disc and thermal fatigue to damage.
Utility application (application number 201110244664.9) discloses a kind of brake disc of high-speed train structure, and this brake disc of high-speed train comprises disk body, and is positioned at rubbing surface and inner side surface on disk body.For the consideration of moulding process and disk body intensity, this utility application is also provided with the first radial plate-like radiating fin and the second radial plate-like radiating fin on disk body inner side surface, and its heat dispersion is mainly realized by material component and radial plate-like radiating fin.Although the heat dissipation plate of this structure can be obtained certain radiating effect by heat dissipation plate radially, but the stirring heat radiation of its radial plate-like radiating fin to brake disc surrounding atmosphere, more to rely on around braking device ambient air eddy current, the hot air range of scatter that vortex is mobile and diffusion velocity are all very limited, especially in the time that bullet train motion speed is on 300km/h, the heat dissipation rate of this brake disc is always less than friction Temperature Rise, make the braking device of bullet train always in the larger bad working environments of heat load, easily cause the quickening of high-speed train braking device to lose efficacy or lost efficacy in advance.Given this how making the brake disc can high efficiency and heat radiation, be the current technical issues that need to address to improve brake disc working life.
Model utility content
For the existing above-mentioned deficiency of prior art, technical problem to be solved in the utility model is to provide a kind of brake disc of high-speed train with forced heat radiation muscle, it can, by brake disc surrounding atmosphere mandatory guidance, accelerate the rapid diffusion of frictional heat, avoids friction disk temperature rise too high.
In order to solve the problems of the technologies described above, the brake disc of high-speed train with forced heat radiation muscle of the present utility model, comprise the disk body with disk body rubbing surface and the disk body back side, on disk body, be provided with disk body mesopore and radiating fin, described radiating fin is circular arc list structure, ratio R/D=0.4～0.6 of the radius of arc R of this radiating fin and disk body outer diameter D; The inflow angle β of radiating fin
1=0～15 °, the drainage angle β of radiating fin
2=25～35 °; Between adjacent two radiating fin, form ventilation slot, be provided with the radiation hole that passes to disk body rubbing surface in the bottom of this ventilation slot; Ratio B2/B1=1.0～1.2 of the height B 2 of described radiating fin and the thickness B 1 of disk body.
In said structure, because radiating fin is circular arc list structure, between adjacent radiating fin, form the ventilation slot that is equally circular arc bathtub construction, the radiating fin of this circular arc convex rib structure and the ventilation slot of arcuate structure, have concurrently radially and multidirectional air-flow forced guide function such as tangential in when braking, guiding brake disc body side surface air radially, tangentially even axial quick diverging flow outside disk body, form the air flow field of energy high speed flow through radiating fin side and ventilation slot bottom land, realize brake disc has been forced to lasting ventilation and heat, accelerate the diffusion of friction catch heat.Again because the ratio R/D of radiating fin radius of arc in the utility model and disk body external diameter is chosen between 0.4～0.6, and heat dissipation plate inflow angle β
1=0～15 °, drainage angle β
2=25～35 °, lot of experiments proves the selection of these parameters, bullet train travelling speed radiating fin when 200～400km/h is formed to pump wind drafting efficiency the highest, air is changed mobile the fastest, the gas flow of ventilation slot of flowing through is more smooth and easy, and coiling outer cool air can enter in groove from ventilation notch efficiently, and is flowed out by groove outer end with a large amount of frictional heats, make large part frictional heat be delivered to surrounding space in thermoconvection mode, form rational air flow field and efficient radiating effect.Also due to the utility model preferred radiating fin height and disk body thickness proportion, be conducive to the rapid diffusion of frictional heat, realized brake disc wind-guiding efficiency and fabrication and installation process synthesis effect; Too low radiating fin height can not reach effective pump wind ventilation effect, form and do not become rational oxygen diffusion field, and too high radiating fin obviously affects the air velocity on ventilation slot bottom land surface, and increase the moulding process difficulty of radiating fin, strengthened the installing space of brake disc.In the utility model, be also provided with at ventilation slot bottom land the radiation hole that passes to disk body rubbing surface, the heat that this radiation hole can not only directly produce rubbing surface brings to ventilation slot and distributes with Air Flow, and can play good row's powder effect, thereby there is height and stable friction factor; Evidence repeatedly, the utility model can be strengthened targetedly the guiding of disc surfaces air and flow bullet train, increase by 30% left and right than existing brake disc heat diffusion area, braking force improves 12% left and right, and the utility model preparation process is reasonable, installation and maintenance are convenient, and structural strength is high, long service life.
Preferred implementation of the present utility model, the ratio R/D=0.5 of described radiating fin radius of arc R and disk body outer diameter D; Radiating fin inflow angle β
1=10 °, the drainage angle β of radiating fin
2=30 °, the height B 2 of radiating fin and disk body thickness B 1 than B2/ B1=1.1.The each parameter of brake disc of this structure is coordinated rationally more, better for high-speed train braking radiating effect.
On the described disk body back side, be provided with mounting hole boss, on mounting hole boss, be provided with mounting hole.
The width of rebate of described ventilation slot is 40mm～50mm.
The sectional shape of described radiating fin is rectangle or trapezoidal.
Described disk body adopts overall structure or Split type structure.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the brake disc of high-speed train that the utlity model has forced heat radiation muscle is described in further detail.
Fig. 1 is the main TV structure schematic diagram that the utlity model has the brake disc of high-speed train of forced heat radiation muscle;
Fig. 2 is the left TV structure schematic diagram of brake disc shown in Fig. 1.
In figure, 1-disk body, 2-radiating fin, 3-mounting hole boss, 4-disk body mesopore, 5-ventilation slot, 6-mounting hole, 7-radiation hole, 8-disk body rubbing surface, 9-disk body back side.
Embodiment
The brake disc of high-speed train with forced heat radiation muscle as shown in Figure 1 and Figure 2, this brake disc of high-speed train comprises disk body in the form of annular discs 1, disk body 1 has disk body rubbing surface 8 and is positioned at the rub disk body back side 9 of 8 relative sides of disk body, on the disk body back side 9, be distributed with equably 8 mounting hole boss 3, on mounting hole boss 3, be provided with mounting hole 6, central position at disk body 1 is also provided with disk body center hole 4, outer diameter D=the 695mm of disk body 1, the internal diameter of disk body center hole 4 is 378mm, and the diameter of mounting hole 6 is 15mm.
On the disk body back side 9, be evenly distributed with 48 radiating fin 2, adjacent two radiating fin 2 are along 7.5 °, disk body circumferencial direction interval, and what radiating fin 2 was the protrusion disk body back side 9 is circular arc list structure, and its sectional shape is rectangle; The muscle top width of its rectangle radiating fin 2 is 20mm, is highly 25mm.The radius of arc R=293mm of radiating fin 2 places circles, the ratio R/D=293/695=0.42 of this radius of arc R and disk body outer diameter D, this physical dimension has considered disk body size, bullet train motion speed and radiating efficiency.Be positioned at the drainage angle β of radiating fin 2 outer ends
2=30 °, the inflow angle β of radiating fin 2 the inners
1=10 °, drainage angle β
2for the angle between tangent line and this end points place disk body radius of the outer end points of radiating fin arc surface, inflow angle β
1for the angle between tangent line and this end points place disk body radius of end points in radiating fin 2 arc surfaces.Between two adjacent radiating fin 2, form ventilation slot 5, the width of rebate of evidence ventilation slot 5 is chosen in that between 40 ~ 50mm, it has good ventilation flow rate and heat dissipation rate, be equipped with 3 radiation holes 7 that pass to disk body rubbing surface 8 in the bottom of each ventilation slot 5, radiation hole 7 internal diameters are 15mm.
Disk body thickness B 1=24mm, the height B 2=25mm of radiating fin 2, disk body 1 and on radiating fin formed by cast inblock, radiating fin height B 2 is B2/ B1=1.04 with the ratio of disk body thickness B 1.
The utility model claimant carries out the analytical proof of a large amount of actual tests and air flow field to brake disc by 1:1 brake power test stand, the radiating effect of brake disc and train running speed and brake disc structure direct correlation, claimant not yet finds that industry has relevant research and reports and submits at present.Through using and research and analyse demonstration, when train running speed is during at 200km/h～400km/h, the ratio of the radiating fin radius of arc R on disk body 1 and disk body 1 outer diameter D should preferentially be chosen between R/D=0.4～0.6, radiating fin inflow angle β
1=0～15 °, radiating fin drainage angle β
2=25～35 °; Radiating fin height B 2 is preferentially chosen in B2/ B1=1.0～1.2 with the ratio of disk body thickness B 1.
In addition, the overall structure that braking disk body of the present utility model is not limited to be formed by cast inblock, can also be the Split type structure of separable assembled, as brake disc is formed by two dish pieces or four dish piece assembling combination.The radiation hole 7 of ventilation slot 5 bottom lands is also not limited at bottom land uniform, should according to disk body rub thermal field not equidistantly distribute, radiation hole 7 in same ventilation slot 5 is also not limited to 3, and should determine according to reality use and structure situation, the effect of the existing enhancing mounting hole of mounting hole boss 3 periphery intensity, also there is disk body that the function of location is installed, therefore both can on each mounting hole boss 3, be provided with mounting hole 6, mounting hole 6 also can be set selectively on installation base 3.
Claims (6)
1. one kind has the brake disc of high-speed train of forced heat radiation muscle, comprise the disk body (1) with disk body rubbing surface (8) and the disk body back side (9), on disk body (1), be provided with disk body mesopore (4) and radiating fin (2), it is characterized in that: described radiating fin (2) is circular arc list structure, ratio R/D=0.4～0.6 of the radius of arc R of this radiating fin (2) and disk body (1) outer diameter D; The inflow angle β of radiating fin (2)
1=0～15 °, the drainage angle β of radiating fin (2)
2=25～35 °; Between adjacent two radiating fin (2), form ventilation slot (5), be provided with the radiation hole (7) that passes to disk body rubbing surface (8) in the bottom of this ventilation slot (5); The height B 2 of described radiating fin (2) and ratio B2/B1=1.0～1.2 of the thickness B 1 of disk body (1).
2. the brake disc of high-speed train with forced heat radiation muscle according to claim 1, is characterized in that: the ratio R/D=0.5 of described radiating fin (2) radius of arc R and disk body (1) outer diameter D; Radiating fin (2) inflow angle β
1=10 °, the drainage angle β of radiating fin (2)
2=30 °, the height B of radiating fin (2) 2 and disk body (1) thickness B 1 than B2/ B1=1.1.
3. the brake disc of high-speed train with forced heat radiation muscle according to claim 1, is characterized in that: on the described disk body back side (9), be provided with mounting hole boss (3), be provided with mounting hole (6) on mounting hole boss (3).
4. the brake disc of high-speed train with forced heat radiation muscle according to claim 1, is characterized in that: the width of rebate of described ventilation slot (5) is 40mm～50mm.
5. the brake disc of high-speed train with forced heat radiation muscle according to claim 1, is characterized in that: the sectional shape of described radiating fin (2) is rectangle or trapezoidal.
6. the brake disc of high-speed train with forced heat radiation muscle according to claim 1, is characterized in that: described disk body (1) adopts overall structure or Split type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188334.1U CN203868196U (en) | 2014-04-18 | 2014-04-18 | High-speed train brake disc with forced radiating ribs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188334.1U CN203868196U (en) | 2014-04-18 | 2014-04-18 | High-speed train brake disc with forced radiating ribs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868196U true CN203868196U (en) | 2014-10-08 |
Family
ID=51649153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420188334.1U Expired - Fee Related CN203868196U (en) | 2014-04-18 | 2014-04-18 | High-speed train brake disc with forced radiating ribs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868196U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925316A (en) * | 2014-04-18 | 2014-07-16 | 青岛四方车辆研究所有限公司 | High-speed train brake disc and brake disc material thereof |
| CN103967980A (en) * | 2014-04-18 | 2014-08-06 | 青岛四方车辆研究所有限公司 | High-speed train brake disc with forced radiation ribs |
| CN112848543A (en) * | 2020-12-30 | 2021-05-28 | 湖南世鑫新材料有限公司 | Carbon fiber preform for carbon ceramic brake disc and preparation method and application thereof |
-
2014
- 2014-04-18 CN CN201420188334.1U patent/CN203868196U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925316A (en) * | 2014-04-18 | 2014-07-16 | 青岛四方车辆研究所有限公司 | High-speed train brake disc and brake disc material thereof |
| CN103967980A (en) * | 2014-04-18 | 2014-08-06 | 青岛四方车辆研究所有限公司 | High-speed train brake disc with forced radiation ribs |
| CN103925316B (en) * | 2014-04-18 | 2016-06-15 | 青岛四方车辆研究所有限公司 | A kind of brake disc of high-speed train and disc material thereof |
| CN112848543A (en) * | 2020-12-30 | 2021-05-28 | 湖南世鑫新材料有限公司 | Carbon fiber preform for carbon ceramic brake disc and preparation method and application thereof |
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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: 20141008 Termination date: 20190418 |