CN111059182A - Improved brake pad for high-speed train - Google Patents
Improved brake pad for high-speed train Download PDFInfo
- Publication number
- CN111059182A CN111059182A CN201911381371.8A CN201911381371A CN111059182A CN 111059182 A CN111059182 A CN 111059182A CN 201911381371 A CN201911381371 A CN 201911381371A CN 111059182 A CN111059182 A CN 111059182A
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- Prior art keywords
- friction
- material layer
- friction block
- brake pad
- steel back
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- 239000002783 friction material Substances 0.000 claims abstract description 72
- 241000357293 Leptobrama muelleri Species 0.000 claims abstract description 69
- 230000007704 transition Effects 0.000 claims abstract description 18
- 238000005245 sintering Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 229910020888 Sn-Cu Inorganic materials 0.000 claims description 3
- 229910019204 Sn—Cu Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 238000004663 powder metallurgy Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 230000001965 increasing effect Effects 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
- F16D2069/0433—Connecting elements not integral with the braking member, e.g. bolts, rivets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0026—Non-ferro
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0023—Shaping by pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to an improved brake pad for a high-speed train, which is formed by one-step pressing of a friction block steel back, transition layer powder and friction material layer powder in a three-fork structure, wherein after pressing, the friction block steel back with three notches at the top end of the three-fork structure is embedded into powder metallurgy material to play a role in supporting a framework and then sintered to form the brake pad; the brake pad is formed by assembling a friction block and a pad steel back. The invention solves the problem that the shearing resistance and the impact resistance of the joint surface between the friction material layer and the friction block steel back are weak due to the pores on the joint surface between the friction material layer and the friction block steel back in the sintering process in the prior art.
Description
Technical Field
The invention relates to the technical field of high-speed train braking, in particular to an improved brake pad for a high-speed train.
Background
With the increasing criss-cross of the high-speed railway network, the running safety of the high-speed train is more and more emphasized, and the braking system is required to generate braking torque to achieve braking in the process from high-speed running to safe brake stopping running, wherein the friction blocks on the brake pads are directly contacted with the wheels, kinetic energy is converted into heat energy through friction and is dissipated into air, so that the performance requirement on the brake pads, particularly the friction blocks on the brake pads is high.
In the prior art, a friction block on a brake pad is formed by pressurizing and sintering a friction material layer and a friction block steel back, and the friction material layer and the friction block steel back are of mutually corresponding structures.
For example, the invention patent with the Chinese patent publication number of CN109307030A discloses a dovetail steel backing integrated powder metallurgy riveting brake pad, which comprises a dovetail steel backing plate which is integrally cast, wherein a plurality of brake pad friction bodies are fixed on the dovetail steel backing plate through flat rivets, a circular gasket is arranged between each brake pad friction body and the dovetail steel backing plate, and each brake pad friction body comprises a friction body and an irregular hexagonal connecting sheet which are pressed together. The steel backing and the dovetail are integrated, and the elastic gasket is arranged between the steel backing and the friction body, so that certain gap adjustment amount can be ensured between the steel backing and the friction body, and the safe use of the brake pad can be ensured.
For another example, the invention patent with the Chinese patent publication number of CN106979267A discloses a friction block of a high-speed train powder metallurgy brake pad and a preparation method thereof, wherein the friction block comprises a copper-plated back plate and a friction body, a transition layer is arranged between the copper-plated back plate and the friction body, and the transition layer is completely metallurgically fused with the copper-plated back plate and the friction body respectively; the friction body, the transition layer and the copper-plated back plate are pressed and then sintered to form the high-speed train powder metallurgy brake pad friction block; and the transition layer is formed by mixing and sintering metal powder and copper powder. The friction block can overcome the defect that the back plate and the friction body are separated and easily fall off due to low bonding strength of the back plate and the friction body in the friction block, and greatly prolongs the service life of the high-speed train powder metallurgy brake pad made of the friction block.
The prior art has at least the following problems:
because the powder metallurgy friction material contains non-metallic components such as graphite, silicon dioxide and the like, the non-metallic components are not wetted with metal, and pores are inevitably formed on a joint surface between the friction material layer and the friction block steel backing in the sintering process, so that the shear resistance and the shock resistance of the joint surface are poor, the friction material layer falls off and falls off, and the safety risk exists.
Aiming at the problems that in the prior art, a powder metallurgy friction material contains non-metallic components such as graphite, silicon dioxide and the like, the friction material is not wetted with metal, and pores are inevitably formed on a joint surface between a friction material layer and a friction block steel back in a sintering process, so that the shear resistance and the shock resistance of the joint surface between the friction material layer and the friction block steel back are poor, an effective solution is not provided at present.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an improved brake pad for a high-speed train.
The brake pad includes: friction blocks and brake pad steel backs;
the friction block comprises a friction block steel back and a friction material layer, a containing groove used for containing the friction block steel back is formed in the friction material layer, the friction block steel back is arranged in the containing groove, the friction block steel back is fixedly connected with the friction material layer, and a brake lining steel back is fixedly connected with the friction block steel back.
Further, the friction block steel back is in a three-fork-shaped structure.
Further, the outer side surface of the friction material layer is provided with wear increasing grains.
Furthermore, a transition layer is arranged between the friction block steel back and the friction material layer, and the friction block steel back, the friction material layer and the transition layer are formed by pressing, forming and sintering.
Further, the top end surface of the friction material layer is a convex curved surface.
Further, the shape of the brake lining steel back is dovetail type.
Furthermore, the outer side of the friction block steel back is provided with an inner concave part, and the inner side of the friction material layer is provided with an inner convex part corresponding to the inner concave part.
Furthermore, three top ends of the friction block steel back are respectively provided with a notch, and the inner side of the friction material layer is provided with three bulges corresponding to the notches.
Further, the transition layer is 12-20% Sn-Cu alloy.
Furthermore, the friction block steel back, the transition layer and the friction material layer are respectively provided with a first through hole, a third through hole and a second through hole which are communicated with each other.
Compared with the prior art, the brake pad has the following remarkable advantages:
the friction block steel back embedded in the friction material layer has the advantages that the mechanical bonding strength of the friction block steel back embedded in the friction material layer is enhanced, the friction block steel back plays a role of a friction material layer framework, the overall structural strength of the friction block is enhanced, the friction block steel back is of a three-fork structure, so that in the braking process of a high-speed train, the friction material layer is evenly stressed, the structural strength of the brake pad is improved, and the service life of the brake pad is prolonged.
2, through set up the transition layer between clutch block steel backing and friction material layer, promoted intermetallic atom/molecular's interdiffusion, further strengthened the bonding strength between sintered clutch block steel backing and the friction material layer, improved anti-shear property and shock resistance between clutch block steel backing and the friction material layer, the phenomenon that the friction material layer drops, falls the piece can not appear, improved the yields, make the clutch block safe and reliable more in service, and the extension that is showing the life of brake lining.
3, the outer side surface of the friction material layer is provided with the lines, so that the stability of the friction block is effectively improved.
4, set up to convex surface through the top terminal surface with the friction material layer, improved the specific surface area of clutch blocks, increased area of contact when reducing mechanical damage and wrench movement power, the stability of clutch blocks when having increased the brake.
And 5, the three top ends of the steel back of the friction block are respectively provided with a notch, the inner side of the friction material layer is provided with three bulges corresponding to the notches, and the three notches are clamped and fixed with the friction material layer, so that the steel back of the friction block and the friction material layer are more stable, the strength of the friction block is improved, and the service life of the brake pad is further prolonged.
Drawings
FIG. 1 is a schematic perspective view of a brake pad according to the present invention;
FIG. 2 is an isometric view of a friction block steel backing and a friction material layer in a brake pad according to the present invention;
FIG. 3 is a cross-sectional view of a friction block in the brake pad of the present invention.
Description of reference numerals:
1-friction block, 11-friction block steel back, 111-first through hole, 112-notch, 113-inner concave part, 114-top end part, 12-friction material layer, 121-accommodating groove, 122-second through hole, 123-top end surface, 124-inner convex part, 125-bulge, 2-brake pad steel back, 3-transition layer and 4-third through hole.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1 and 2, the brake pad includes: the friction block comprises a friction block 1 and a brake pad steel back 2, the friction block 1 comprises a friction block steel back 11 and a friction material layer 12, a containing groove 121 for containing the friction block steel back 11 is arranged on the friction material layer 12, the friction block steel back 11 is arranged in the containing groove 121, the friction block steel back 11 is fixedly connected with the friction material layer 12, the brake pad steel back 2 is fixedly connected with the friction block steel back 11, the friction block steel back 11 is arranged in the containing groove 121 to play a role of a framework of the friction material layer 12 and used for increasing the structural strength of the friction material layer 12, as shown in figure 3, a transition layer 3 is arranged between the friction block steel back 11 and the friction material layer 12, the friction block steel back 11, the friction material layer 12 and the transition layer 3 are formed by pressing, forming and sintering, wherein the transition layer 3 is 12-20% of Sn-Cu alloy and used for promoting mutual diffusion of intermetallic atoms/molecules and enhancing the bonding strength between the sintered friction block steel back 11 and the friction material layer, seted up the first through-hole 111 of a plurality of on the clutch blocks steel backing 11, the first through-hole 111 equipartition of a plurality of is on clutch blocks steel backing 11, be equipped with third through-hole 4 and second through-hole 122 corresponding with the first through-hole 111 of a plurality of on transition layer 3 and the friction material layer 12 respectively, be used for passing second through-hole 122 in proper order with fastener (not shown in the figure), third through-hole 4, first through-hole 111, third through-hole 4 equals with first through-hole 111 size, the size of second through-hole 122 is greater than third through-hole 4, first through-hole 111, be used for locating in the second through-hole 122 the head end of fastener, and is concrete, the fastener includes the rivet.
Further, as shown in fig. 2, the friction block steel back 11 is a three-fork structure, the included angle between adjacent top ends 114 of the friction block steel back 11 of the three-fork structure is 120 degrees, the adjacent top ends 114 are excessive through the arc structure of the inner concave portion 113, correspondingly, the friction material layer 12 is provided with an inner convex portion 124 corresponding to the inner concave portion 113, the inner side surface of the inner convex portion 124 is a convex curved surface for being attached to the inner concave portion 113, it should be noted that the friction block steel back 11 is not limited to a three-fork structure, such as a four-fork, five-fork, six-fork … …, only needs to ensure that the friction block steel back 11 is embedded into the friction material layer 12, so that the friction block steel back 11 functions as a framework of the friction material layer 12, the thickness of the friction block steel back 11 is smaller than that of the friction material layer 12, the side length of the friction material layer 12 is larger than that the friction block steel back 11 is embedded into the accommodating groove 121 on the friction material layer 12, the three top ends 114 of the friction block steel back 11 are respectively provided with a notch 112, and correspondingly, the inner side of the friction material layer 12 is provided with three protrusions 125 corresponding to the notches 112, for improving the stability of the friction block steel back 11 and the friction material layer 12 during braking, here, it should be noted that, when the top ends 114 of the friction block steel back 11 are not provided with the notches 112, although the friction block steel back 11 is also embedded into the friction material layer 12, during long-term use, the friction block steel back 11 is easily protruded out of the friction material layer 12 or the friction block steel back 11 is loosened in the friction material layer 12, which is not beneficial to the service life of the friction block 1, similarly, when the friction block steel back 11 is in a four-fork, five-fork or six-fork … … structure, the number of the notches 112 opened on the top ends 114 of the friction block steel back 11 corresponds to the number of the protrusions 125 opened on the inner side of the friction material layer 12, the friction block steel back 11 and the friction material layer 12 are guaranteed to be stable.
Further, the outer surface of the friction material layer 12 is provided with polishing patterns (not shown), and the polishing patterns are distributed in a ring shape with the center of the friction material layer 12 as the center.
Further, as shown in fig. 1 and 2, the tip end surface 123 of the friction material layer 12 is a convex curved surface for increasing the surface area of the friction block 1, increasing the contact area while reducing mechanical impact and twisting power.
Further, as shown in fig. 1, the brake pad includes a pad steel back 2 and a plurality of friction blocks 1, the pad steel back 2 is fixedly connected with the friction block steel back 11, and the friction blocks 1 are uniformly distributed on the pad steel back 2 and used for generating friction torque by being squeezed with the wheel.
Further, the brake lining steel backing 2 is in a dovetail shape.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and various modifications and changes can be made by those skilled in the art without departing from the spirit and principle of the present invention, and any modifications, equivalents, improvements, etc. should be included in the scope of the claims of the present invention.
Claims (10)
1. An improved brake pad for high-speed trains, comprising: the brake pad comprises a friction block (1) and a brake pad steel back (2);
the friction block (1) comprises a friction block steel back (11) and a friction material layer (12), wherein the friction material layer (12) is provided with a holding groove (121) for holding the friction block steel back (11), the friction block steel back (11) is arranged in the holding groove (121), the friction block steel back (11) is fixedly connected with the friction material layer (12), and the brake lining steel back (2) is fixedly connected with the friction block steel back (11).
2. The improved brake pad for high-speed trains as claimed in claim 1, wherein said friction block steel backing (11) is of a three-forked structure.
3. The improved brake pad for high speed trains as set forth in claim 1, wherein the outer side surface of said friction material layer (12) is provided with a wear enhancing texture.
4. The improved brake pad for high-speed trains as claimed in claim 1, wherein a transition layer (3) is arranged between the friction block steel backing (11) and the friction material layer (12), and the friction block steel backing (11), the friction material layer (12) and the transition layer (3) are formed by pressing, forming and sintering.
5. The improved brake pad for high-speed trains as set forth in claim 1, wherein the top end surface (123) of said friction material layer (12) is convexly curved.
6. The improved brake pad for high-speed trains as claimed in claim 1, wherein the shape of the pad steel backing (2) is dovetail type.
7. The improved brake pad for high-speed trains as claimed in claim 1, wherein the outside of said friction block steel backing (11) is provided with an inner recess (113), and the inside of said friction material layer (12) is provided with an inner protrusion (124) corresponding to said inner recess (113).
8. The improved brake pad for high-speed trains as claimed in claim 2, wherein the three top ends (114) of the friction block steel backing (11) are respectively provided with a notch (112), and the inner side of the friction material layer (12) is provided with three protrusions (125) corresponding to the notches (112).
9. The improved brake pad for high-speed trains as claimed in claim 4, wherein said transition layer (3) is 12-20% Sn-Cu alloy.
10. The improved brake pad for high-speed trains as claimed in claim 4, wherein the friction block steel backing (11), the transition layer (3) and the friction material layer (12) are respectively provided with a first through hole (111), a third through hole (4) and a second through hole (122) which are communicated with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911381371.8A CN111059182A (en) | 2019-12-27 | 2019-12-27 | Improved brake pad for high-speed train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911381371.8A CN111059182A (en) | 2019-12-27 | 2019-12-27 | Improved brake pad for high-speed train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111059182A true CN111059182A (en) | 2020-04-24 |
Family
ID=70304252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911381371.8A Pending CN111059182A (en) | 2019-12-27 | 2019-12-27 | Improved brake pad for high-speed train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111059182A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0821462A (en) * | 1994-07-07 | 1996-01-23 | Aisin Chem Co Ltd | Disc brake pad |
| CN104728318A (en) * | 2013-12-18 | 2015-06-24 | 天津机辆轨道交通装备有限责任公司 | Brake pad of high-speed train |
| CN204610642U (en) * | 2015-05-14 | 2015-09-02 | 北京瑞斯福高新科技股份有限公司 | A kind of high-speed track passenger car powder metallurgy brake pad |
| CN105952828A (en) * | 2016-06-30 | 2016-09-21 | 北京北摩高科摩擦材料有限责任公司 | Elastic adjustment type brake pad used for train |
| CN206592457U (en) * | 2017-02-22 | 2017-10-27 | 中铁隆昌铁路器材有限公司 | A kind of high-speed train braking powder metallurgy brake pad |
| CN207213000U (en) * | 2017-05-16 | 2018-04-10 | 北京瑞斯福高新科技股份有限公司 | A kind of high-speed train powder metallurgy brake pad brake pad |
| CN109469695A (en) * | 2018-11-15 | 2019-03-15 | 北京科技大学 | A kind of high bonding strength high-speed rail brake block |
| KR20190081401A (en) * | 2017-12-29 | 2019-07-09 | 상신브레이크주식회사 | A brake pad assembly for a vehicle using a flexible plate |
| CN110273954A (en) * | 2019-07-17 | 2019-09-24 | 中铁隆昌铁路器材有限公司 | A kind of motor train unit train powder metallurgy brake pad |
| CN110296167A (en) * | 2019-07-17 | 2019-10-01 | 中铁隆昌铁路器材有限公司 | A kind of high-speed EMUs powder metallurgy brake pad of spherical triangle shape |
| CN209839027U (en) * | 2018-08-01 | 2019-12-24 | 博深工具股份有限公司 | Train brake pad connected by slotted disc spring |
| CN211737840U (en) * | 2019-12-27 | 2020-10-23 | 北京北摩高科摩擦材料股份有限公司 | Improved brake pad for high-speed train |
-
2019
- 2019-12-27 CN CN201911381371.8A patent/CN111059182A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0821462A (en) * | 1994-07-07 | 1996-01-23 | Aisin Chem Co Ltd | Disc brake pad |
| CN104728318A (en) * | 2013-12-18 | 2015-06-24 | 天津机辆轨道交通装备有限责任公司 | Brake pad of high-speed train |
| CN204610642U (en) * | 2015-05-14 | 2015-09-02 | 北京瑞斯福高新科技股份有限公司 | A kind of high-speed track passenger car powder metallurgy brake pad |
| CN105952828A (en) * | 2016-06-30 | 2016-09-21 | 北京北摩高科摩擦材料有限责任公司 | Elastic adjustment type brake pad used for train |
| CN206592457U (en) * | 2017-02-22 | 2017-10-27 | 中铁隆昌铁路器材有限公司 | A kind of high-speed train braking powder metallurgy brake pad |
| CN207213000U (en) * | 2017-05-16 | 2018-04-10 | 北京瑞斯福高新科技股份有限公司 | A kind of high-speed train powder metallurgy brake pad brake pad |
| KR20190081401A (en) * | 2017-12-29 | 2019-07-09 | 상신브레이크주식회사 | A brake pad assembly for a vehicle using a flexible plate |
| CN209839027U (en) * | 2018-08-01 | 2019-12-24 | 博深工具股份有限公司 | Train brake pad connected by slotted disc spring |
| CN109469695A (en) * | 2018-11-15 | 2019-03-15 | 北京科技大学 | A kind of high bonding strength high-speed rail brake block |
| CN110273954A (en) * | 2019-07-17 | 2019-09-24 | 中铁隆昌铁路器材有限公司 | A kind of motor train unit train powder metallurgy brake pad |
| CN110296167A (en) * | 2019-07-17 | 2019-10-01 | 中铁隆昌铁路器材有限公司 | A kind of high-speed EMUs powder metallurgy brake pad of spherical triangle shape |
| CN211737840U (en) * | 2019-12-27 | 2020-10-23 | 北京北摩高科摩擦材料股份有限公司 | Improved brake pad for high-speed train |
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