CN102927170A - Novel brake pad with dovetailing steel back structure and floatable friction blocks - Google Patents
Novel brake pad with dovetailing steel back structure and floatable friction blocks Download PDFInfo
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- CN102927170A CN102927170A CN201210181277XA CN201210181277A CN102927170A CN 102927170 A CN102927170 A CN 102927170A CN 201210181277X A CN201210181277X A CN 201210181277XA CN 201210181277 A CN201210181277 A CN 201210181277A CN 102927170 A CN102927170 A CN 102927170A
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- brake
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- friction
- elastic support
- brake lining
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Abstract
The invention relates to a novel brake pad with a dovetailing steel back structure and floatable friction blocks. The brake pad is characterized by comprising an up-down split dovetailing brake pad steel back, a plurality of brake pad friction blocks, a plurality of elastic supporting pieces and a plurality of round spring clamps, wherein the up-down split dovetailing brake pad steel back is provided with various mounting holes; the elastic supporting pieces are provided with spherical supporting surfaces and central guide holes; the lower parts of the friction blocks are provided with spherical supporting surfaces and positioning and connecting shafts with clamp troughs, and the connecting shafts can pass through the guide holes of the elastic supporting pieces and positioning holes of a back plate and are locked on the back plate by the round spring clamps; and the friction blocks are hexagonal blocks and are adjacent and mutually locked to prevent the friction blocks from rotating during the working of the brake pad. According to the brake pad, a traditional dovetailing structure is adopted, and a largest contact friction area of the brake pad and a brake disk can be obtained in a brake process of a train so as to ensure that the brake process is stable, and the brake pad has the functions of damping, shock absorbing, noise reducing, heat radiating, and the like; and the friction blocks are easy to replace so as to reduce the train operating cost, so that the brake pad can be widely applied to a brake system of a high-speed train.
Description
Technical field
The present invention relates to a kind of disc brake that is applied to bullet train, particularly about a kind of Novel friction piece can float, dovetail connects steel back structure brake pad.
Background technique
Along with the raising of train running speed, generally adopt the disc brake of reel and two kinds of forms of wheel disc in order to ensure train braking performance truck brake rigging device, directly absorb kinetic energy with the brake disc friction by brake pad, make the train braking parking.For bullet train, because braking energy is relatively large, during braking for the critical component brake pad of disc brake: not only require the friction block of brake lining wear-resisting, high temperature resistant, low noise, and require should have good heat-conductive characteristic and load equalization performance between the parts of friction block and its installation, be connected simple and reliable etc. with brake clamp.
At present, in the train disk braking system, brake lining exists retardation pressure unbalanced during braking, causes the brake disc vibration, can't obtain maximum effectively friction area, heat load is large when causing death braking, and brake lining reduces working life, simultaneously, brake lining is connected complicated with brake clamp, and versatility is relatively poor.
Therefore, optimizing structure design provides the brake pad that satisfies high-speed train braking performance requirement and general installation requirement just very necessary.
Summary of the invention
Based on above-mentioned technical background, the objective of the invention is: the maximum effectively contact friction area of realizing brake pad and brake disc by structural design, the friction block all carries with realizing braking force being connected of assembly, simultaneously, steel backing adopts the dovetail structure, can satisfy and improve the train braking performance thereby provide a kind of, satisfy general dovetail structure and connect, guarantee the floating type train brake pad of the replaceable brake pad of security of operation.
For achieving the above object, the present invention is by the following technical solutions: the brake pad that a kind of Novel friction piece can float, dovetail connects steel back structure is characterized in that: it comprises a split brake lining steel backing, the friction of some brake linings block, some elastic support sheets and some coil component spring clamps; Described split brake lining steel backing is the arc Split type structure of upper and lower non-full symmetric, the part that its top is removed, set up in the bottom, the joint is the skew symmetry structure, the upper and lower dovetail that is connected with brake clamp that is cast with respectively of described brake lining steel backing, described brake lining steel backing top is provided with the mounting-positioning holes that elastic support sheet, coil component spring clamp are installed for fixing described brake lining friction block: its middle and upper part is 8, and the bottom is 9, and the bottom steel backing also is cast with the boss that rotates for the locating friction piece; Described elastic support sheet is selected the impact briquetting of high-temperature alloy rustproof spring steel material, the elastic support sheet top is provided with spherical and realizes matching with the spherical of friction block coupling shaft root and make the brake lining brake pad body can the rotation of relative resilient support plate, described elastic support sheet bottom is provided with fixed support ratchet adjustable elastic support plate elasticity and locates with the brake lining steel backing, and described elastic support sheet middle part has the coupling shaft that the centre pilot hole is used for installing brake lining friction block; Described brake lining friction block comprises friction block steel backing, guiding coupling shaft and friction piece, described friction block steel backing root is provided with spherical and matches with the elastic support sheet spherical, described guiding coupling shaft is provided with spring card slot and is used for cooperating with spherical in the friction block steel backing root for coil component spring clamp and spherical are installed, and described friction piece is that hexagonal centre is provided with blind hole; Described coil component spring clamp is provided with supporting leg and circular collar.
Described friction piece is one to have the Hexagon cylinder of central blind hole, and described guiding coupling shaft is fitted on the interior spherical of described friction block steel backing, and described friction piece and described friction block steel backing and guiding coupling shaft are sintered into one.
The quantity of described elastic support sheet is except 1 at middle part, and all the other are for being symmetrical arranged each 8 up and down, and the fixed support number of pawls of described elastic support sheet is 4 but variable.
Described elastic support sheet and described coil component spring clamp have elasticity, can make in the vertical direction flexible adjustment of the relatively described brake lining steel backing of described friction block, realize that described elastic support sheet, described coil component spring clamp, described friction block and described brake lining steel backing are floating connection.
Described friction piece, the intermeshing and bottom steel backing positioning boss in Hexagon limit of utilization friction block realizes that described friction block substantially horizontal in described brake lining steel backing mounting plane locks mutually.
The present invention is owing to take above technological scheme, and it has the following advantages: 1, brake lining steel backing of the present invention adopts traditional upper and lower split dovetail structure, and simple with being connected of brake clamp, versatility is better.2, the present invention rubs block by elastic support sheet and brake pad steel backing formation floating structure, and by the locking of coil component spring clamp, makes and interconnect simple compactness between each parts.3, the mounting-positioning holes location of elastic support sheet of the present invention by the steel backing elastic support sheet, friction block coupling shaft contacts with steel backing installation through hole and produces cross shear when having avoided braking; The vibration that brake lining produced when the elasticity of elastic support sheet can absorb braking work, the noise that produces when helping to reduce braking.4, because the spherical of elastic support sheet matches with the spherical of friction block coupling shaft root, but the retardation pressure of proportionality action on steel backing not only, simultaneously Hexagon friction block can freely be adjusted in the horizontal direction until till the intermeshing locking of adjacent friction block, the friction block can also have certain free adjustment amount in the vertical direction, so that the fricting working surface of friction block farthest contacts with brake disc, dynamic free adjustment process so namely occurs in the moment of braking beginning, also among whole braking process, floating structure can make braking process obtain maximum effectively contact friction area, is conducive to all carry.5, the present invention rubs and is separated by elastic support sheet between block and the steel backing, be conducive to dissipate the heat that friction block and brake disc contact friction produce, thereby avoided owing to the overheated brake disc that makes occurs turning blue and decrepitation, guaranteed the operating life of brake disc.6, the present invention's block that rubs is replaceable, and brake lining steel backing, elastic support sheet and coil component spring clamp are reusable, are conducive to reduce cost.
The present invention connects simply, and braking ability is good, and application safety is reliable, can be widely used in the disc brake of braking system of bullet train.
Description of drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is the rear view of Fig. 1
Fig. 3 is the A-A sectional view of Fig. 1
Fig. 4 is brake lining steel back structure schematic representation of the present invention
Fig. 5 is the rear view of Fig. 4
Fig. 6 is the A-A sectional view of Fig. 4
Fig. 7 is elastic support sheet structural representation of the present invention
Fig. 8 is the A-A sectional view of Fig. 7
Fig. 9 is brake lining brake pad body structure schematic representation of the present invention
Figure 10 is the A-A sectional view of Fig. 9
Figure 11 is spring clamp structural representation of the present invention
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
Shown in Fig. 1～3, the present invention includes upper brake pad steel backing 11, lower brake pad steel backing 12, the friction of some brake linings block 2, some elastic support sheets 3 and some spring clampes 4.
Shown in Fig. 4～6, brake lining steel backing 1 of the present invention is the arc Split type structure of upper and lower non-full symmetric, adopt steel material be made (forging or casting), top brake lining steel backing 11 is provided with the location and installation hole 112 that is connected with elastic support sheet 3, the mounting hole 114 that is connected with spring clamp 4, the through hole 115 that the guiding coupling shaft of brake lining friction block 2 is passed, short dovetail 111; Bottom brake lining steel backing 12 is provided with the location and installation hole 122 that is connected with elastic support sheet 3, the mounting hole 124 that is connected with spring clamp 4, the through hole 125 that the guiding coupling shaft of brake lining friction block 2 is passed is positioned at the positioning boss 123 of the brake pad 2 at A-A section place, long dovetail 121.
Shown in Fig. 7～8, elastic support sheet 3 of the present invention is selected the impact briquetting of high-temperature alloy rustproof spring steel material, elastic support sheet 3 tops are provided with spherical 303 and are used for realizing matching with the spherical 212 of friction block coupling shaft root and make the brake lining brake pad body can the rotation of relative resilient support plate, the bottom is provided with fixed support ratchet 301 adjustable elastic support plate elasticity and locates with the brake lining steel backing, and the middle part has the guiding coupling shaft 22 that centre pilot hole 302 is used for installing brake lining friction block.
Shown in Fig. 9～10, brake lining friction block 2 of the present invention is sintered together and makes together with friction material, friction block steel backing 21, guiding coupling shaft 22 through vacuum pressed by copper based powder metallurgy material, friction block steel backing 21 in the brake lining friction block 2 is by the steel plate punched moulding, and friction block steel backing root is provided with interior spherical 211 and outer spherical supporting surface 212; Guiding coupling shaft 22 is provided with spring card slot 221 and spherical 222; Friction piece 23 is single arc quadrilateral 231, and the center is provided with blind hole 232 can realize the friction piece heat radiation on the one hand, can store on the other hand the buffing of friction piece 23.。
As shown in figure 11, coil component spring clamp 4 of the present invention adopts spring steel to make, and is provided with a plurality of supporting legs 401 and circular collar 402.
The present invention assembles as follows:
Bottom fixed support ratchet 301 on each elastic support sheet 3 is inserted respectively on the top brake lining steel backing 11 on corresponding location and installation hole 112 or the bottom steel backing 12 in the corresponding location and installation hole 112; The rub guiding coupling shaft 22 of block 2 of brake lining is passed centre pilot hole 302 and the through hole 115 on the top brake lining steel backing 11 or the through hole 125 on the bottom steel backing 12 on the elastic support sheet 3 successively; Again coil component spring clamp 40 is put into top brake lining steel backing 11 opposite side mounting holes 114 or bottom brake lining steel backing 12 opposite side mounting holes 124, and be installed in the spring card slot 221 of guiding coupling shaft 22.
Repeated several times is arranged brake lining friction block 2 according to Fig. 1, thereby some brake lining friction blocks 2, some elastic support sheets 3 and some coil component spring clamps 4 are assembled on the brake lining steel backing 1.
After the installation of the present invention, insert respectively from below to up dovetail groove on the brake clamp along the dovetail 111 of the dovetail 111 of top brake lining steel backing 11 and bottom steel backing 12, then by the positioning device on the brake clamp brake lining steel backing 1 and brake clamp are fixed.In braking device when work,, retardation pressure acts on the brake lining steel backing, flexibly is delivered on the friction block by some elastic support sheets, and some friction blocks brake disc of steadily fitting is implemented braking.Because the sphere of elastic support sheet and friction block root sphere-contact are so that single arc quadrilateral brake lining friction block can realize that the three-dimensional trace rotates, the friction block that horizontal plane three-dimensional trace rotates can freely adjust until till the adjacent engagement locking such as Fig. 1, simultaneously because any friction block of the elasticity of elastic support sheet and coil component spring clamp can also be done free adjustment in the vertical direction, so that the fricting working surface of friction block farthest contacts with brake disc, dynamic free adjustment process so namely occurs in the moment of braking beginning, also among whole braking process, floating structure can make braking process obtain maximum effectively contact friction area, realizes all carrying.
The various embodiments described above only are used for explanation the present invention, and wherein the structure of each parts, Placement etc. all can change to some extent, and every equivalents and improvement of carrying out on the basis of technical solution of the present invention all should do not got rid of outside protection scope of the present invention.
Claims (7)
1. the brake pad that a Novel friction piece can float, dovetail connects steel back structure is characterized in that: it comprises a split brake lining backboard, the friction of some brake linings block, some elastic support sheets and some coil component spring clamps;
Described split brake lining steel backing is the arc Split type structure of upper and lower non-full symmetric, the part that its top is removed, set up in the bottom, the joint is the skew symmetry structure, the upper and lower dovetail that is connected with brake clamp that is cast with respectively of described brake lining steel backing, described brake lining steel backing top is provided with the mounting-positioning holes that elastic support sheet, coil component spring clamp are installed for fixing described brake lining friction block: its middle and upper part is 8, and the bottom is 9, and the bottom steel backing also is cast with the boss that rotates for the locating friction piece;
Described elastic support sheet is selected the impact briquetting of high-temperature alloy rustproof spring steel material, the elastic support sheet top is provided with spherical and realizes matching with the spherical of friction block coupling shaft root and make the brake lining brake pad body can the rotation of relative resilient support plate, described elastic support sheet bottom is provided with fixed support ratchet adjustable elastic support plate elasticity and locates with the brake lining steel backing, and described elastic support sheet middle part has the coupling shaft that the centre pilot hole is used for installing brake lining friction block;
Described brake lining friction block comprises friction block steel backing, guiding coupling shaft and friction piece, described friction block steel backing root is provided with spherical and matches with the elastic support sheet spherical, described guiding coupling shaft is provided with spring card slot and is used for cooperating with spherical in the friction block steel backing root for coil component spring clamp and spherical are installed, and described friction piece is that hexagonal centre is provided with blind hole;
Described coil component spring clamp is provided with supporting leg and circular collar.
2. the brake pad that a kind of Novel friction piece as claimed in claim 1 can float, dovetail connects steel back structure, it is characterized in that: the arc Split type structure brake lining steel backing of described upper and lower non-full symmetric is Split type structure, can adopt and forge or the casting making.
3. the brake pad that a kind of Novel friction piece as claimed in claim 1 can float, dovetail connects steel back structure, it is characterized in that: described guiding coupling shaft is fitted on the interior spherical of described friction block backboard, and described friction piece and described friction block backboard and guiding coupling shaft are sintered into one.
4. the brake pad that a kind of Novel friction piece as claimed in claim 1 can float, dovetail connects steel back structure, it is characterized in that: the quantity of described elastic support sheet is except 1 at middle part, all the other are for being symmetrical arranged up and down each 8, and the fixed support number of pawls of described elastic support sheet is 4 but variable.
5. the brake pad that a kind of Novel friction piece as claimed in claim 1 or 2 can float, dovetail connects steel back structure, it is characterized in that: described elastic support sheet and described coil component spring clamp have elasticity, can make in the vertical direction flexible adjustment of the relatively described brake lining backboard of described friction block, realize that described elastic support sheet, described coil component spring clamp, described friction block and described brake lining backboard are floating connection.
6. the brake pad that a kind of Novel friction piece as claimed in claim 1 or 2 can float, dovetail connects steel back structure, it is characterized in that: described friction piece, utilize the intermeshing and bottom steel backing positioning boss in Hexagon limit of friction block, realize that described friction block substantially horizontal in described brake lining steel backing mounting plane locks mutually.
7. the brake pad that a kind of Novel friction piece as claimed in claim 1 or 2 can float, dovetail connects steel back structure; it is characterized in that: the structure of described each parts, Placement etc. all can change to some extent; every equivalents and improvement of carrying out on the basis of technical solution of the present invention all should do not got rid of outside protection scope of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181277XA CN102927170A (en) | 2012-06-05 | 2012-06-05 | Novel brake pad with dovetailing steel back structure and floatable friction blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181277XA CN102927170A (en) | 2012-06-05 | 2012-06-05 | Novel brake pad with dovetailing steel back structure and floatable friction blocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102927170A true CN102927170A (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210181277XA Pending CN102927170A (en) | 2012-06-05 | 2012-06-05 | Novel brake pad with dovetailing steel back structure and floatable friction blocks |
Country Status (1)
| Country | Link |
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| CN (1) | CN102927170A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014121704A1 (en) * | 2013-02-06 | 2014-08-14 | 北京天宜上佳新材料有限公司 | Floating type brake pad for train |
| CN109931352A (en) * | 2017-12-18 | 2019-06-25 | 中车戚墅堰机车车辆工艺研究所有限公司 | Elastic floating brake lining |
| CN113048172A (en) * | 2021-03-25 | 2021-06-29 | 博深股份有限公司 | Motor train unit brake lining with large gap |
| CN114001839A (en) * | 2021-10-14 | 2022-02-01 | 哈尔滨新干线轨道交通科技有限公司 | Device and method for measuring friction surface temperature of brake pad and wheel disc under high-speed braking |
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| CN102105718A (en) * | 2008-07-24 | 2011-06-22 | 比科里特有限责任公司 | Brake lining for a disc brake and brake lining system |
| CN102174946A (en) * | 2011-03-17 | 2011-09-07 | 北京浦然铁路制动科技有限责任公司 | Brake pad of railway vehicle brake device |
| CN102359523A (en) * | 2011-08-22 | 2012-02-22 | 北京天宜上佳新材料有限公司 | Floating type train brake pad capable of replacing friction block |
| CN202194976U (en) * | 2011-01-27 | 2012-04-18 | 克诺尔-布里姆斯轨道车辆***有限公司 | Braking friction lining for disc brake of motor vehicle |
| CN202790228U (en) * | 2012-06-06 | 2013-03-13 | 北京天宜上佳新材料有限公司 | Braking pad of friction block floatable dovetailing steel back structure |
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Patent Citations (7)
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| CN102105718A (en) * | 2008-07-24 | 2011-06-22 | 比科里特有限责任公司 | Brake lining for a disc brake and brake lining system |
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| CN102359523A (en) * | 2011-08-22 | 2012-02-22 | 北京天宜上佳新材料有限公司 | Floating type train brake pad capable of replacing friction block |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014121704A1 (en) * | 2013-02-06 | 2014-08-14 | 北京天宜上佳新材料有限公司 | Floating type brake pad for train |
| EA029606B1 (en) * | 2013-02-06 | 2018-04-30 | Бейджинг Тяньишанцзя Нью Матириал Корп., Лтд | Floating brake pad for a train |
| CN109931352A (en) * | 2017-12-18 | 2019-06-25 | 中车戚墅堰机车车辆工艺研究所有限公司 | Elastic floating brake lining |
| CN113048172A (en) * | 2021-03-25 | 2021-06-29 | 博深股份有限公司 | Motor train unit brake lining with large gap |
| CN114001839A (en) * | 2021-10-14 | 2022-02-01 | 哈尔滨新干线轨道交通科技有限公司 | Device and method for measuring friction surface temperature of brake pad and wheel disc under high-speed braking |
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Application publication date: 20130213 |