CN205078665U - Novel high -speed railway friction disc backplate structure - Google Patents
Novel high -speed railway friction disc backplate structure Download PDFInfo
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- CN205078665U CN205078665U CN201520835519.1U CN201520835519U CN205078665U CN 205078665 U CN205078665 U CN 205078665U CN 201520835519 U CN201520835519 U CN 201520835519U CN 205078665 U CN205078665 U CN 205078665U
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Abstract
The utility model discloses a novel high -speed railway friction disc backplate structure, its characterized in that: this backplate structure includes the arch on body and the body, protruding and body formula as an organic whole, just the arch be die -cut fashioned semi -circular protruding by the lancing dies, bellied quantity is more than two to the body axis is central equipartition on body surface, and is the pit on the corresponding body of arch, this backplate structure combines together through moulding -die and sintering process with powder metallurgical material, powder metallurgical material passes through moulding -die and the protruding combination of backplate, and be full of in the corresponding pit of protruding structure, form powder metallurgy friction pressed compact, finally combine completely through subsequent sintering technology and backplate, protruding structure has improved the cohesion of backplate with powder metallurgy friction pressed compact, anti -shear performance between the powder body and the base member backplate when the braking is greatly improved, the stable form of friction disc has been increased, and improves the safety, moreover.
Description
Technical field
The utility model patent relates to the apparatus field for high ferro skidding, especially a kind of high ferro brake powder brake pad back board structure part.
Background technique
Along with the fast development of economy, China is in industrialization and period is accelerated development in urbanization.High-speed railway is for the large flowing ensureing urban population, play vital effect, because high ferro operation speed reaches more than 250 kilometers per hour, therefore require higher to the brake system safety in operation of high ferro, brake system is the safety guarantee that high ferro is run.Existing braking device generally adopts backboard fixed friction sheet, this brake block by most heat conduction on backboard, larger to the performance requirement of backboard, and, foundation brake system due to bullet train is the critical component of bullet train, the braking ability of bullet train brake lining directly affects the Security of train operation, thus to the brake material performance of brake lining particularly tribological property have higher requirement.Along with the raising of bullet train overall trip speed, traditional braking friction material as composite progressively replace by powder metallurgy friction material, external 250 ~ 300km/h high speed brake lining friction material all adopts powder metallurgy friction material.
The structure of existing high ferro brake powder metallurgy friction piece is floating structure, therefore require high to the adhesive strength of brake process dorsulum and powder metallurgy compact, and in powder metallurgy friction piece sintering process, because backboard and the powder metallurgy pressed compact that rubs lacks the connection of corresponding rock-steady structure, cause the anti-shear ability between the powder friction body after sintering and metal backing not enough, in use easily form the phenomenon of cutting off, and dropping of body of powder can have a strong impact on the Security of high ferro braking.
Model utility content
For the problems of the prior art, the purpose of this utility model to provide a kind of novel high ferro brake back board structure, decrease metallic dust friction pressed compact after forming process with metal backing in conjunction with time the drawback that occurs, improve the combination force of powder metallurgy friction piece, be conducive to the safety turnover of base substrate in production process, thus improve greatly braking device stability, for high ferro run Security provide stable guarantee.
In order to achieve the above object, the technical solution of the utility model is:
A kind of novel high ferro friction plate back board structure, it is characterized in that: this back board structure comprises the projection on body and body, protruding is integral type with body, and described projection is by the semi-cylindrical hill cutting tongue mould punching molding, protruding quantity is two or more, centered by body axis, be distributed on body surface, the body corresponding with projection is pit.This back board structure is combined by pressing mold and sintering process with powdered metallurgical material, powdered metallurgical material is combined by pressing mold and backboard projection, and be full of in the corresponding pit of protruding structure, form powder metallurgy friction pressed compact, be combined completely with backboard eventually through follow-up sintering technique, protruding structure improves backboard and powder metallurgy and to rub the combination force of pressed compact, adds the stable type of friction plate, improves Security.
In addition, complete by pattern school, the projection available school type after cutting tongue mould punching molding.
Further, the quantity of described projection is six, and the combination force under this quantity is optimum.
Further, described projection is connected with arc round angle shape transition with body, forms the largest contours line without wedge angle, reduces wedge angle in the compressing process of metallic dust and occurs the phenomenon of avalanche.
Further, the angle of inclination between described projection and body surface is 60 ° ~ 90 °, and its preferred angle is 75 °.
Further, there is burr and punching press gradient in convex surfaces, and these burr and punching press gradient further increase backboard and powder metallurgy and to rub pressed compact combination force, make brake process safer.
Compared with prior art, the novel high ferro friction plate back board structure that the utility model provides is unusual, the technical program proposes new structural design scheme in mechanical structure, backboard arranges multiple protruding structure, improve the combination force of powder metallurgy friction pressed compact and backboard, there is burr and the punching press gradient of stamping process generation in backboard simultaneously, substantially increase the anti-shear ability when braking between body of powder and matrix backplane, more improve itself and metallic dust to rub the stability of pressed compact, this Novel back plate structure is simple, stable high, be convenient to processing, and in performance, substantially increase the stability of braking device.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Accompanying drawing 1 to be the utility model back board structure with metallic dust rub structural representation that pressed compact is combined;
Accompanying drawing 2 is the rear structure schematic diagram of this back board structure.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As Fig. 1, shown in 2, a kind of novel high ferro friction plate back board structure, it is characterized in that: this back board structure comprises the projection 2 on body 1 and body 1, projection 2 and body 1 are integral type, and described projection 2 is by the semi-cylindrical hill cutting tongue mould punching molding, can complete by pattern school, school type by the projection 2 after cutting tongue mould punching molding, the quantity of protruding 2 is two or more, its preferred amount is six, and protruding 2 are connected with arc round angle 3 shape transition with body 1, form the largest contours line without wedge angle, protruding 2 are distributed on body 1 surface centered by body 1 axis, the body 1 corresponding with projection 2 is pit 5, angle of inclination between protruding 2 and body 1 surface is 60 ° ~ 90 °, preferred angle is 75 °, there is burr and punching press gradient in protruding 2 surfaces, this back board structure is combined by pressing mold and sintering process with powdered metallurgical material, powdered metallurgical material is combined with backboard protruding 2 by pressing mold, and be full of in the corresponding pit 5 of protruding 2 structures, form powder metallurgy friction pressed compact 4, be combined completely with backboard eventually through follow-up sintering technique, protruding 2 structures improve backboard and powder metallurgy and to rub the combination force of pressed compact 4, add the stable type of friction plate, improve Security.
Specifically adding man-hour, after backboard body 1 machines, by cutting the punching press of tongue stamping die, forming plural decile projection 2, then by point protruding 2 corrections such as straightening die realizations; In subsequent technique, by pressing mold, metallic dust is pressed among backboard, metallic dust is shaping and be combined completely with backboard body 1 in pressing mold pressing process, part metals powder fills up among the pit 5 that backboard body 1 produces due to punching press, after completing pressing process, backboard and metallic dust rub pressed compact 4 combination together with carry out sintering and form final metallic dust friction piece.
Be interpreted as in more detail: backboard body 1 is after punch process forms protruding 2 structures, be installed in corresponding frock, and fill metallic dust by press to the upper surface of backboard, reach corresponding requirements, start press and set corresponding parameter, pressing mold has extruded the compacting to powdered metallurgical material; In pressing process, as in Fig. 1, metallic dust friction pressed compact 4 is combined closely with backboard projection 2, and fill up Fig. 2 pits 5.Then use High Temperature Furnaces to sinter, complete final shaping; Occur wedge angle in forming process as Fig. 2 backboard arc round angle 3 decreases metallic dust friction pressed compact 4 and occur Fragmentation Phenomena in sintering process, this programme improves the combination force of final powder metallurgy friction piece.
Be understandable that, above about specific descriptions of the present utility model, the technological scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meet.
Claims (6)
1. a novel high ferro friction plate back board structure, it is characterized in that: this back board structure comprises the projection (2) on body (1) and body (1), protruding (2) and body (1) are integral type, and described projection (2) is by the semi-cylindrical hill cutting tongue mould punching molding, the quantity of protruding (2) is two or more, centered by body (1) axis, be distributed on body (1) surface, the body (1) corresponding with protruding (2) is upper is pit (5).
2. one according to claim 1 novel high ferro friction plate back board structure, is characterized in that: the quantity of described projection (2) is six.
3. one according to claim 1 novel high ferro friction plate back board structure, is characterized in that: described projection (2) is connected with arc round angle (3) shape transition with body (1).
4. one according to claim 1 novel high ferro friction plate back board structure, is characterized in that: the angle of inclination between described projection (2) and body (1) surface is 60 ° ~ 90 °.
5. one according to claim 4 novel high ferro friction plate back board structure, is characterized in that: the angle of inclination between described projection (2) and body (1) surface is 75 °.
6. one according to claim 1 novel high ferro friction plate back board structure, is characterized in that: described projection (2) surface exists burr and punching press gradient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835519.1U CN205078665U (en) | 2015-10-27 | 2015-10-27 | Novel high -speed railway friction disc backplate structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835519.1U CN205078665U (en) | 2015-10-27 | 2015-10-27 | Novel high -speed railway friction disc backplate structure |
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| CN205078665U true CN205078665U (en) | 2016-03-09 |
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| CN201520835519.1U Active CN205078665U (en) | 2015-10-27 | 2015-10-27 | Novel high -speed railway friction disc backplate structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692255A (en) * | 2020-07-24 | 2020-09-22 | 北京瑞斯福高新科技股份有限公司 | Formula of sinking barb structure clutch blocks |
| CN112029231A (en) * | 2020-09-11 | 2020-12-04 | 湖北飞龙摩擦密封材料股份有限公司 | Aluminum alloy composite disc type brake pad and friction material thereof |
-
2015
- 2015-10-27 CN CN201520835519.1U patent/CN205078665U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692255A (en) * | 2020-07-24 | 2020-09-22 | 北京瑞斯福高新科技股份有限公司 | Formula of sinking barb structure clutch blocks |
| CN112029231A (en) * | 2020-09-11 | 2020-12-04 | 湖北飞龙摩擦密封材料股份有限公司 | Aluminum alloy composite disc type brake pad and friction material thereof |
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