CN209245121U - A kind of rail transit train floating type carbon pottery brake pad - Google Patents
A kind of rail transit train floating type carbon pottery brake pad Download PDFInfo
- Publication number
- CN209245121U CN209245121U CN201821835709.3U CN201821835709U CN209245121U CN 209245121 U CN209245121 U CN 209245121U CN 201821835709 U CN201821835709 U CN 201821835709U CN 209245121 U CN209245121 U CN 209245121U
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- steel
- supporting block
- rail transit
- brake pad
- floating type
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- 238000007667 floating Methods 0.000 title claims abstract description 43
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Abstract
The utility model discloses a kind of rail transit train floating type carbon pottery brake pads, including steel back and several floating type friction blocks being assemblied in steel back, the top of supporting block is fixed on using the friction block of carbon pottery composite, supporting block passes through the latch structure being arranged thereon and clamp button of the spring is connected in steel back, disk spring is set between supporting block and steel back, the support spherical surface contacted always with disk spring inner ring is provided in supporting block, make supporting block that the swing of all directions may be implemented, and makes supporting block that there is the floating space moved to steel back.The utility model uses novel carbon ceramic composite material, reduces the weight of rail transit train braking system, ensure that brake pad has many merits such as high temperature resistant, stable friction factor；Its floating structure is simpler compact, reduces friction phenomenon caused by brake lining different location unbalance stress, improves brake lining service life, and the thickness of entire brake lining can be accomplished thinner, simplify the installation space of entire braking system.
Description
Technical field
The utility model belongs to rail transit train braking technology, and in particular to a kind of floating type carbon of rail transit train
Pottery brake pad.
Background technique
Braking system is the critical system of rail transit train safety guarantee and emergency, the braking system of rail transit train
It is made of brake pad, brake disc, brake clamp, checking cylinder and control system etc., wherein checking cylinder is made by brake clamp
Brake lining clamps brake disc and the kinetic energy of bullet train is become thermal energy, thermal energy passes through system by the friction between brake lining and brake disc
Moving plate and brake lining are dissipated in atmosphere, to reach braking purpose.
Currently, in Conventional braking systems using it is more be fixed metal material brake lining, this brake lining was being braked
Due to brake force uneven distribution in journey, the problem for be easy to causeing brake lining different location abrasion loss inconsistent causes to rub on brake lining
The eccentric wear of pad, causes brake lining to scrap in advance.In order to solve this brake force energy imbalance, floatation type brake pad meet the tendency of and
It is raw, a kind of train brake plate as disclosed in the Chinese patent document application No. is 201610401931.1, by friction block
It is separately provided for realizing adjustment bracket, disk spring and the dish-shaped circlip of floating connection between the steel back, realizes lock
The friction block self-alignment regulatory function of piece, guarantees itself producing balanced forces of each friction block, while guaranteeing the friction block on entire brake lining
With uniformly contact, prevent brake pad from eccentric wear occur.
But with the continuous speedup of train, when speed reaches even higher than 350Km/h, the temperature rise for generation of braking sharply increases
Add, existing metal material brake lining is unable to satisfy requirement at high temperature.Carbon ceramic composite material excellent, resistance to height with frictional behaviour
The series of advantages such as temperature, suitable environment range be wide, brake lining can be applied to as friction piece up.But carbon pottery friction piece can not
It is sintered in supporting block as traditional metal friction body, it is thick to not only result in entire brake lining using current floating structure
The increase of degree, influences the assembly space of entire braking system, while being also possible to will affect the floating effect of brake lining, and brake lining is caused to hold
Easily there is eccentric wear.Therefore, how to design and prepare that assembling structure between a friction block and steel back is simple, floating effect is excellent
Floating type carbon pottery brake pad, is still a problem urgently to be resolved.
Utility model content
The technical issues of the utility model solves is: for above-mentioned existing for the floating type brake lining of existing rail transit train
Defect provides a kind of novel rail transit train floating type carbon pottery brake pad.
The utility model adopts the following technical solution realizes:
A kind of rail transit train floating type carbon pottery brake pad, including steel back 1 and floating assembly in steel back 1
Several friction blocks 2,
The top of supporting block 3 is fixed on using the friction block 2 of carbon pottery composite, the supporting block 3 by being arranged thereon
Latch structure limit be connected in steel back 1, and make supporting block 3 that there is the floating space that moves to steel back 1,3 He of supporting block
Disk spring 4 is set between steel back 1, supporting block 3 is made to realize elastic floating with respect to steel back 1；It is provided with always in the supporting block 3
The support spherical surface 31 contacted with 4 inner ring of disk spring.
Further, the material of the supporting block 3 is alloy steel or stainless steel, and the radius of the support spherical surface 31 is R10
~40mm.
Preferably, the material of the supporting block 3 is 3Cr2Mo or 25Cr2MoV, SUS201.
Further, the first support bowl 41 of the inner ring setting with the support spherical contact of spherical surface 31 of the disk spring 4.
Further, the material of the disk spring 4 is high temperature alloy or stainless steel, and material thickness is 0.8~3mm, always
Height is 2~4mm.
Further, in the steel back 1 setting second support bowl 12, supporting block 3 to steel back 1 compress when with support spherical surface
31 spherical contacts.
Further, the supporting block 3 uses non-circular cross-section that, and dress is mutually contradicted in steel back between adjacent supports block 3
Match.
Further, the cross section of the friction block 2 is less than supporting block 3, mutual in supporting block 3 between the friction block 2
Formation width is the gap of 0.5~5mm when conflict.
Further, the rotation stop boss 11 for preventing supporting block 3 from rotating is provided in the steel back 1.
The utility model a kind of rail transit train with floating type carbon make pottery brake pad in, the friction block 2 and branch
It is fixed between bracer 3 by the riveting of rivet 6.
In conclusion the floating type carbon pottery brake pad of the utility model uses novel carbon ceramic composite material, reduce
The weight of rail transit train braking system, and it is numerous to also assure that brake pad has high temperature resistant, stable friction factor etc.
Advantage；Its floating structure is simpler, reduces friction phenomenon caused by brake lining different location unbalance stress, improves brake lining
Service life, and the thickness of entire brake lining can be accomplished thinner, simplify the installation space of entire braking system.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the planar structure schematic diagram of the floating type carbon pottery brake pad in embodiment.
Fig. 2 is the assembly signal in the floating type carbon pottery brake pad in embodiment between one of friction block and steel back
Figure.
Fig. 3 is the top view of supporting block in embodiment.
Fig. 4 is the schematic cross-section of integral support block in embodiment.
Fig. 5 is the schematic cross-section of split type supporting block in embodiment.
Figure label: 1- steel back, 11- rotation stop boss, 12- second support bowl, 2- friction block, 3- supporting block, 31- support
Spherical surface, 32- rivet hole, 4- disk spring, 41- first support bowl, 5- clamp button of the spring, 6- rivet.
Specific embodiment
Embodiment
Referring to Fig. 1, the floating type carbon pottery brake pad in diagram is a kind of preferred embodiment of the utility model, is specifically included
Steel back 1 and several friction blocks 2 being arranged in steel back 1, each friction block 2 are set both with respect to the floating of 1 standalone elastic of steel back
It sets.When train is advanced, frictional disk keeps rotating together with hub and axletree, and when braking, the brake pad of frictional disk two sides is fast
Ram compression is close to conjunction frictional disk and converts kinetic energy into friction by phase mutual friction between the friction block 2 and frictional disk in steel back 1
Thermal energy, realizes the braking of train, and after end of braking, brake lining playback separates, braking friction solution between friction block 2 and frictional disk
It removes.
Friction block 2 in the present embodiment uses density 1.8g/cm3~2.4g/cm3Carbon ceramic composite material, thickness is in 10-
30mm has the advantages that light weight, high temperature resistant and great friction coefficient, machining by compression molding or long fibre,
His steel back 1 and connection structure is all made of refractory metal material, has the advantages that metal strength is high, the combination of two materials
The weight of brake pad entirety is alleviated, while ensure that the intensity, high temperature resistance and braking effect of brake pad.
The floating structure of friction block 2 in the present embodiment is described in detail below in conjunction with Fig. 2.
Friction block 2 is fixed in supporting block 3, is formed a black box with supporting block 3, then will be rubbed by supporting block 3
Cleaning block 2 is connect with steel back 1.
Supporting block 3 has the platform structure at a top and the latch structure of a bottom, and friction block 2 is tightly attached to supporting block 3
Platform structure top surface, in supporting block 3 with central symmetry process two rivet holes 32 pass through two groups of rivetings as shown in Figure 3
Nail 6 will fixed riveting between friction block 2 and supporting block 3, length of the rivet 6 in the rivet hole 32 on friction block 2 as close as possible to
The bottom of friction block 2 can guarantee the reliable frictional thickness of friction block as best one can in this way, while can also pass through friction block 2
Top surface determines the service life of friction block 2 to the thickness difference of rivet.
It is arranged 2~40 according to the size of the area of brake lining and friction block on monolithic brake lining, the riveting on single friction block
Nail hole is 1~10 according to the size of friction block.Rivet material is stainless steel, and rivet can be flat head rivet or countersunk head riveting
Nail, rivet stem diameters are φ 4mm~φ 12mm, and length is 5~20mm.
The bottom latch structure of supporting block 3 passes through the installation hole location in steel back 1, and is limited by clamp button of the spring 5 in steel back 1
Another side, supporting block 3 can not deviate from from the installation hole location of steel back 1, while retain centainly between supporting block 3 and steel back 1
Floating space of the distance as supporting block 3 and friction block 2, one is installed between the platform structure bottom and steel back 1 of supporting block 3
Disk spring 4, disk spring 4 are sleeved on outside the latch structure of supporting block 3, and bottom outer ring is embedded in the dish-shaped bullet being arranged in steel back
Spring positioning hole, top inner ring are contacted with the platform structure bottom of supporting block 3, by the disk spring 4 by supporting block 3 with respect to steel
The setting of 1 elastic floating is carried on the back, i.e., without external forces, supporting block 3 and friction block 2 will not under the action of disk spring 4
It is actively close to steel back 1, during brake pad compresses brake disc braking, the deformation of disk spring 4 is compressed so that supporting block 3
It is close to steel back 1 with friction block 2.
In order to which the floating posture of adjustment friction block, this implementation can be adapted to automatically in the case where eccentric wear occurs for friction block 2
Example supporting block 3 platform structure bottom and latch structure junction be arranged to a support spherical surface 31, using support spherical surface 31 and
The sphere-contact of 4 inner ring of disk spring realizes the attitude-adaptive adjustment of supporting block 3 and friction block 2, while for the adjustment
It is reliable to realize, it should reserve and meet between latch structure swings between the latch structure of supporting block 3 and the installation hole location of steel back 1
Gap.The radius for supporting spherical surface 31 is R10~40mm, and support stock material is alloy steel or stainless steel, and preferred material is P20
(3Cr2Mo) or 25Cr2MoV, SUS201 etc..
Since the line contact area between the inner ring and support spherical surface 31 of disk spring 4 is too small, it is easy abrasion branch too quickly
The surface of spherical surface 31 is supportted, for the present embodiment by the first support of processing bowl 41 at the top of the inner ring of disk spring 4, first supports bowl 41 and branch
Sphere-contact is formed between the support spherical surface 31 of bracer 3, so that the contact area between disk spring 4 and supporting block increases
Greatly, the service life of supporting block is improved.Disk spring material is high temperature alloy, various stainless steels etc., and preferably material is
GH4145, material thickness are 0.8~3mm, and total height is 2~4mm.
Meanwhile the present embodiment processing the second support bowl 12 also at the latch structure installation hole location of the corresponding supporting block 3 of steel back 1,
When friction block 2 and supporting block 3 compress in the case where being in eccentric wear adjustment posture to steel back 1 in this way, the second support bowl 12 can be with
Support spherical surface 31 to realize sphere-contact, guarantee between supporting block 3 and steel back 1 it is reliable be bonded, while the second support bowl 12 and branch
Support the mating spherical surfaces of spherical surface 31, it can also be ensured that friction block 2 and supporting block 3 still are able to carry out eccentric wear posture tune under impaction state
It is whole, it avoids because of the excessive aggravation for leading to friction block eccentric wear of friction grip.
The platform structure and latch structure of supporting block 3 in the present embodiment can be processed using overall structure, as shown in Fig. 4,
It can also be by platform structure and latch structure using being assembled again after separate structure processing, as shown in figure 5, easy to support piece in this way
3 processing and maintenance replacement.
Supporting block 3 in the present embodiment using on-circular cross-section kidney-shaped structure, i.e., in circle symmetrical machining two it is parallel
Straight line, after supporting block 3 is assemblied in steel back 1, the straight line that can use supporting block 3 mutually contradicts assembly, in this way can be with
It prevents from rotating between adjacent supports block 3 and friction block fixed thereon 2, friction block 2 uses similar with supporting block 3 section
Face shape, but the section of friction block 2 is less than the section of supporting block 3, the present embodiment is corresponding straight by the kidney-shaped section of friction block 2
The position on line side is narrower than supporting block 3, so that certain gap is formed when supporting block 3 mutually contradicts between friction block 2, the gap
It can be used as the heat dissipation channel and chip space of brake pad.
Supporting block 3 and friction block 2 can also use other non-circular cross-section that in practical applications, as triangle, rectangle,
Hexagon etc..
It is irregular due to 1 surface of steel back, the case where individually arrangement can be needed there are individual friction blocks, for it is this not
Regularly arranged friction block 2, the present embodiment rotation stop boss 11 at the surface processing of steel back 1, rotation stop boss 11 with assemble
The straight line of supporting block 3 contradicts, and prevents supporting block 3 and friction block 2 from rotating with respect to steel back 1, the height of rotation stop boss 11 is not
It should be more than the top surface of supporting block 3.In addition the rotation stop groove that corresponding 3 cross section of supporting block can also be processed in steel back 1, will be whole
A 3 floating assembly of supporting block is in rotation stop groove, but this structure needs to increase the thickness of steel back.
The advantages of embodiment above describes the basic principles and main features of the utility model and the utility model, current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the concrete operating principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, this reality
It will also have various changes and improvements with novel, these various changes and improvements fall within the scope of the claimed invention, this
Utility model is claimed range and is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of rail transit train floating type carbon pottery brake pad, including steel back (1) and floating assembly are on steel back (1)
Several friction blocks (2), it is characterised in that:
The top of supporting block (3) is fixed on using the friction block (2) of carbon pottery composite, the supporting block (3) by setting thereon
The latch structure limit set is connected on steel back (1), and supporting block (3) is made to have the floating space moved to steel back (1), the branch
Disk spring (4) are set between bracer (3) and steel back (1), supporting block (3) is made to realize elastic floating with respect to steel back (1)；The branch
The support spherical surface (31) contacted always with disk spring (4) inner ring is provided on bracer (3).
2. a kind of rail transit train according to claim 1 floating type carbon pottery brake pad, the supporting block (3)
Material is alloy steel or stainless steel, and the radius of support spherical surface (31) is R10~40mm.
3. a kind of rail transit train according to claim 2 floating type carbon pottery brake pad, the supporting block (3)
Material is 3Cr2Mo or 25Cr2MoV, SUS201.
4. a kind of rail transit train according to claim 1 floating type carbon pottery brake pad, the disk spring (4)
Inner ring setting with support spherical surface (31) spherical contact first support bowl (41).
5. a kind of rail transit train according to claim 4 floating type carbon pottery brake pad, the disk spring (4)
Material be high temperature alloy or stainless steel, material thickness be 0.8~3mm, total height be 2~4mm.
6. a kind of rail transit train according to claim 4 is made pottery brake pad with floating type carbon, set on the steel back (1)
Set the second support bowl (12), supporting block (3) to steel back (1) compress when with support spherical surface (31) spherical contact.
7. a kind of rail transit train according to claim 1 floating type carbon pottery brake pad, the supporting block (3) are adopted
With non-circular cross-section that, assembly is mutually contradicted between adjacent supports block (3) in steel back.
8. a kind of rail transit train according to claim 6 floating type carbon pottery brake pad, the friction block (2)
Cross section is less than supporting block (3), and when supporting block (3) mutually contradicts, formation width is 0.5~5mm between the friction block (2)
Gap.
9. a kind of rail transit train according to claim 7 is made pottery brake pad with floating type carbon, set on the steel back (1)
It is equipped with the rotation stop boss (11) for preventing supporting block (3) from rotating.
10. a kind of rail transit train according to claim 1 to 9 floating type carbon pottery brake pad, described
It is fixed between friction block (2) and supporting block (3) by rivet (6) riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821835709.3U CN209245121U (en) | 2018-11-08 | 2018-11-08 | A kind of rail transit train floating type carbon pottery brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821835709.3U CN209245121U (en) | 2018-11-08 | 2018-11-08 | A kind of rail transit train floating type carbon pottery brake pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209245121U true CN209245121U (en) | 2019-08-13 |
Family
ID=67527550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821835709.3U Active CN209245121U (en) | 2018-11-08 | 2018-11-08 | A kind of rail transit train floating type carbon pottery brake pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209245121U (en) |
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2018
- 2018-11-08 CN CN201821835709.3U patent/CN209245121U/en active Active
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