CN101788030B - Connection of axle-mounted brake disk used for rail vehicle and disk hub - Google Patents
Connection of axle-mounted brake disk used for rail vehicle and disk hub Download PDFInfo
- Publication number
- CN101788030B CN101788030B CN2010101325591A CN201010132559A CN101788030B CN 101788030 B CN101788030 B CN 101788030B CN 2010101325591 A CN2010101325591 A CN 2010101325591A CN 201010132559 A CN201010132559 A CN 201010132559A CN 101788030 B CN101788030 B CN 101788030B
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- dish hub
- brake
- disk
- briquetting
- axle
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Abstract
The invention discloses a connection of an axle-mounted brake disk used for a rail vehicle and a disk hub. The inner ring surface of the brake disk (1) used for connection is provided with evenly distributed radial grooves (9); disk hub flanges (8) having the same amount with the radial grooves (9) are evenly distributed on the disk hub (5); the disk hub flange (8) is provided with an axial through groove (10) and a circumferential through groove (11); the disk hub flanges (8) are inserted into the radial grooves (9), and an adjusting block (2) is assembled in the axial through groove (10); a first lock block (3) and a second lock block (7) are respectively arranged on two sides of the disk hub flange (8); and a clamp bolt (6) respectively passes through a through hole on the first lock block (3), the adjusting block (2) and the second lock block (7) to be connected with a nut (4). The invention capable of realizing axial fixation of the brake disk (1) and the disk hub (5) can reduce fastening moment of force, releases the radial structure restraint stress and thermal stress of the brake disk, changes signal friction torque brake into combined brake of mechanical torque and friction torque and improves the brake safety.
Description
Technical field
The present invention relates to the connecting means of a kind of axle-mounted brake disk used for rail vehicle and dish hub, be applicable to quick heavy-duty freight car and EMU train.
Technical background
The UIC of International Union of Railways adopts the pattern of bilateral cast iron brake shoe tread brake to carry out overtesting to the heavy lorry of 21t axle, the result shows, when speed is higher than 130km/h, original tread brake can not satisfy the requirement of lorry safety brake, basically also all adopt disc braking for speed-raising more than the speed 160km/h and bullet train, disc braking has become the main mode of braking of quick lorry and EMU.
Brake disc is subjected to the acting in conjunction of multiple load in braking process, mainly contain retardation pressure, centrifugal force, friction catch moment of torsion, structural constraint stress and thermal stress, and wherein structural constraint stress and thermal stress are the main stress that causes brake disc to lose efficacy.
At present, being fastenedly connected mainly between shaft-mounted brake disc and the dish hub realizes by trim ring, dish hub flange and bolt, brake disc is in braking process, because temperature rise is higher, expand distortion, being fastenedly connected between dish hub and the brake disc played effect of contraction to the radial expansion of brake disc, causes the bigger stress of the inner generation of brake disc.
" a kind of connecting means that is particularly useful for the rail vehicle brake disc " disclosed in No. 200480037307.3, the Chinese patent application, this connecting means is by setting up sliding bar on each brake disc flange, the dish hub is alleviated the restriction of brake disc radial deformation, but still adopt single friction torque braking, the Tightening moment of bolt is had relatively high expectations.
Summary of the invention
Technical problem to be solved of the present invention: and the radial deformation that adopts compression fit to limit between the dish hub, adopt single friction torque to brake.
Technological scheme of the present invention:
A kind of axle-mounted brake disk used for rail vehicle is connected with the dish hub, uniform radial groove on the inner ring surface of brake disc, and the uniform dish hub flange identical with radial groove quantity on the dish hub established axial pass trough on the dish hub flange;
Dish hub flange inserts radial groove, adjusts packaged being assigned in the axial pass trough;
First briquetting, second briquetting lay respectively at the left and right sides of dish hub flange, and the through hole that clamping bolt passes on first briquetting, adjustment piece, second briquetting successively is connected with nut, realizes the axial restraint of brake disc and dish hub.
3～5 of quantity that have uniform radial groove on the brake disc inner ring surface.
Dish hub flange is divided into two-layer vertically.
The length of first briquetting, second briquetting is more than or equal to 2 times of brake disc radial groove circumferential width.
Beneficial effect of the present invention:
Brake disc and dish hub adopt the plug-in type assembly method, and step up by briquetting, nuts and bolt, and the radial deformation that has discharged becomes single friction torque and brakes and be friction torque and mechanical torque associating transmission.Dish hub flange is divided into four parts along the axial and circumferential of dish hub, and the micro-elastic distortion can both take place each part, has reduced the requirement on machining accuracy and the assembling difficulty of brake disc and dish hub.
Description of drawings
Fig. 1 be axle-mounted brake disk used for rail vehicle and dish hub be connected the radial section schematic representation.
Fig. 2 is the generalized section of the A-A slice location among Fig. 1.
Fig. 3 is the dish hub schematic representation with three dish hub flanges.
Fig. 4 is the dish hub schematic representation with five dish hub flanges.
Among the figure, brake disc 1 is adjusted piece 2, the first briquettings 3, nut 4, dish hub 5, bolt 6, the second briquettings 7, dish hub flange 8, radial groove 9, flange axial pass trough 10, flange peripheral groove 11.
Embodiment
The present invention is further illustrated in conjunction with the accompanying drawings.
Embodiment one
A kind of axle-mounted brake disk used for rail vehicle is connected with the dish hub, as Fig. 1,2.Uniform three radial grooves 9 on the inner ring surface of brake disc 1, the uniform dish hub flange 8 identical with radial groove 9 quantity on the dish hub 5 established axial pass trough 10 on the dish hub flange 8, and dish hub flange 8 is divided into two-layer vertically.
The length of first briquetting 3, second briquetting 7 equals 2 times of brake disc radial groove circumferential width.
First briquetting 3, adjustment piece 2, second briquetting 7, nut 4, the quantity of bolt 6 is three.
First briquetting 3, second briquetting 7 lay respectively at the left and right sides of dish hub flange 8, and the through hole that clamping bolt 6 passes on first briquetting 3, adjustment piece 2, second briquetting 7 successively is connected with nut 4, realizes the axial restraint of brake disc 1 and dish hub 5.
Embodiment two
Embodiment two is identical with embodiment one parts assembly relation, two embodiments' difference is: among the embodiment two, uniform five radial grooves 9 on the inner ring surface of brake disc 1, the uniform dish hub flange 8 identical on the dish hub 5 with radial groove 9 quantity, establish axial pass trough 10 on the dish hub flange 8, dish hub flange 8 is divided into two-layer vertically.
First briquetting 3, adjustment piece 2, second briquetting 7, nut 4, the quantity of bolt 6 is five.
Offer 5 radial grooves 9 on the brake disc 1; Dish hub flange 8 is offered 5 axial pass troughs 10 and circumferential groove 11, as shown in Figure 4; Adjust piece 2, the first briquettings 3, nut 4, the quantity of bolt 6, the second briquettings 7 is 5.
Claims (4)
1. the linkage structure of axle-mounted brake disk used for rail vehicle and dish hub, it is characterized by: uniform radial groove (9) on the inner ring surface of brake disc (1), dish hub (5) is gone up the uniform dish hub flange (8) identical with radial groove (9) quantity, establishes axial pass trough (10) on the dish hub flange (8);
Dish hub flange (8) inserts radial groove (9), adjusts piece (2) and is assemblied in the axial pass trough (10);
First briquetting (3), second briquetting (7) lay respectively at the left and right sides of dish hub flange (8), the through hole that clamping bolt (6) passes on first briquetting (3), adjustment piece (2), second briquetting (7) successively is connected with nut (4), realizes the axial restraint of brake disc (1) and dish hub (5).
2. according to the linkage structure of described a kind of axle-mounted brake disk used for rail vehicle of claim 1 and dish hub, it is characterized by: the quantity of uniform radial groove (9) is 3～5 on brake disc (1) inner ring surface.
3. according to the linkage structure of described a kind of axle-mounted brake disk used for rail vehicle of claim 1 and dish hub, it is characterized by: dish hub flange (8) is divided into two-layer vertically.
4. according to the linkage structure of described a kind of axle-mounted brake disk used for rail vehicle of claim 1 and dish hub, it is characterized by: the length of first briquetting (3), second briquetting (7) is more than or equal to 2 times of the radial groove circumferential width of brake disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101325591A CN101788030B (en) | 2010-03-24 | 2010-03-24 | Connection of axle-mounted brake disk used for rail vehicle and disk hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101325591A CN101788030B (en) | 2010-03-24 | 2010-03-24 | Connection of axle-mounted brake disk used for rail vehicle and disk hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101788030A CN101788030A (en) | 2010-07-28 |
| CN101788030B true CN101788030B (en) | 2011-12-28 |
Family
ID=42531364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101325591A Expired - Fee Related CN101788030B (en) | 2010-03-24 | 2010-03-24 | Connection of axle-mounted brake disk used for rail vehicle and disk hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101788030B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3935635A1 (en) * | 1989-10-26 | 1991-05-02 | Knorr Bremse Ag | Rail vehicle disc brake - has friction disc bolted each side of wheel, with internal reinforcing plate shaped for heat dissipation |
| DE4125701A1 (en) * | 1991-08-02 | 1993-02-04 | Knorr Bremse Ag | AXLE BRAKE DISC FOR RAIL VEHICLES |
| DE10028958B4 (en) * | 2000-06-16 | 2013-07-25 | Faiveley Transport Remscheid Gmbh | Brake disc for a disc brake |
| DE10351592B3 (en) * | 2003-11-05 | 2005-04-28 | Knorr Bremse Systeme | Brake disc especially for rail vehicles has friction ring centered and locked against rotation through slide elements each mounted in insert bore in hub or wheel disc |
| CN201335113Y (en) * | 2008-12-09 | 2009-10-28 | 北京纵横机电技术开发公司 | Brake disc device installed on shaft |
-
2010
- 2010-03-24 CN CN2010101325591A patent/CN101788030B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101788030A (en) | 2010-07-28 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20130324 |