CN203146655U - Combined floating type brake pad - Google Patents

Combined floating type brake pad Download PDF

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Publication number
CN203146655U
CN203146655U CN 201320069189 CN201320069189U CN203146655U CN 203146655 U CN203146655 U CN 203146655U CN 201320069189 CN201320069189 CN 201320069189 CN 201320069189 U CN201320069189 U CN 201320069189U CN 203146655 U CN203146655 U CN 203146655U
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CN
China
Prior art keywords
brake pad
spherical
positioning
backboard
support
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN 201320069189
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Chinese (zh)
Inventor
吴佩芳
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BEIJING TIANYISHANGJIA NEW MATERIALS Co Ltd
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BEIJING TIANYISHANGJIA NEW MATERIALS Co Ltd
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Priority to CN 201320069189 priority Critical patent/CN203146655U/en
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Publication of CN203146655U publication Critical patent/CN203146655U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a combined floating type brake pad. The combined floating type brake pad comprises a combined back plate which is formed by mutually splicing and connecting two back plates, a plurality of friction blocks arranged on the back plates, elastic support sheets arranged between the friction blocks and the back plates, and a clamping spring capable of connecting the friction blocks to a first back plate in a floating manner, wherein each elastic support sheet comprises a spherical support surface connected to a spherical support part of each friction block in a gluing manner, a guide hole formed at the center of the bottom part of the spherical support surface to be suitable for the penetration of a positioning part of each friction block, and a plurality of supporting pawls arranged at the outer side of the spherical support surface; the support pawls extend from the edge of the spherical support surface to the bottom of the spherical support surface and inclines towards the direction far away from the guide hole; connecting edges of the supporting pawls are connected to the edge of the spherical support surface through a smooth translation section; and supporting edges of the supporting pawls which are opposite to the connecting edges extend beyond the bottom of the spherical support surface. The brake pad solves the problem that partial pawls of the elastic support sheets of the existing brake pad are bent inwards rather than stretched outwards to result in support failure of corresponding parts.

Description

The composite floating type brake pad
Technical field
The utility model relates to a kind of disc brake that is applied to bullet train, particularly a kind of composite floating type brake pad.
Background technique
Along with the trend of railroad train to high speed development, the train braking performance there has been higher requirement.In the train disk braking system, brake pad is one of critical component, and direct and brake disc friction absorbs kinetic energy, and train braking is stopped.Existing train braking brake lining generally adopts rivet fixedly connected, when train is braked at a high speed, be difficult between brake pad and the brake disc realize fitting fully, like this brake lining under the acting in conjunction of bearing varying stress and high heat load, be easy to generate the brake pad crackle, fall piece, phenomenon such as damaged, also can cause the brake disc crackle when serious, influence the braking effect of bullet train.
In order to address the above problem, Chinese patent file CN102107665A discloses a kind of elastic structure high speed brake lining, between brake pad and backboard, install belleville spring additional, the angle of brake pad can change and improve effective friction area between brake pad and the brake disc when the high speed brake lining is braked, thereby alleviates the eccentric wear of brake pad.But limit by the belleville spring structure, contact for line between brake pad and the belleville spring, belleville spring is less to the support force of brake pad, and brake pad is subjected to during high-speed train braking frictional force and pressure are all very big, so belleville spring is to alleviating the poor effect of brake pad eccentric wear, and bigger frictional force causes the working life of belleville spring shorter, and the frequency of changing belleville spring is higher.
For addressing the above problem, Chinese patent file CN102401047A discloses a kind of elastic support sheet for the train braking brake lining, comprises spherical part, centre pilot bore portion and fixed support ratchet part.The brake pad of brake lining can be adjusted in elastic support sheet spherical automatically during train braking, improves effective friction area of brake pad and brake disc.This elastic support sheet compares that belleville spring has improved elasticity greatly and to the support force of brake pad.But, between fixed pawl supporting part in this technological scheme and the spherical by having the transition of facing directly of several angle, when brake pad when being subjected to the crunch that at a high speed braking brings, the angle of described transitional surface produces big shearing stress, thereby causing the part ratchet outwards not upheld bends inwards on the contrary, make the support of appropriate section lose efficacy, even can cause the damage that fractures of this part ratchet.
The model utility content
For this reason, technical problem to be solved in the utility model is that the part ratchet of the elastic supporting member for supporting optical member of existing train braking brake lining is not outwards upheld and bends inwards on the contrary, make the problem that the support of appropriate section was lost efficacy, and then a kind of brake pad that can reliablely and stablely make brake pad and brake disc good fit is provided.
For solving the problems of the technologies described above, composite floating type brake pad of the present utility model, it comprises, the combination backboard, it splices connection mutually by two backboards, forms a plurality of positioning holes on the described backboard; Several brake pads, it comprises, friction part, insert the positioning part of described positioning hole and be arranged at described friction part and described positioning part between spherical supporting portion, the sphere of described spherical supporting portion protrudes to described positioning part direction; Several jump rings, its described jump ring is connected on the described positioning part, and described brake pad is connected on the described backboard; Also comprise the elastic support sheet that is arranged between described brake pad and the described backboard, it comprises, spherical is fitted and connected with described spherical supporting portion; The bottom centre of described spherical forms and is suitable for the pilot hole that described positioning part is passed; Be arranged at some support ratchets in the described spherical outside, described support ratchet extends away from described pilot hole direction to bottom and the tendency of described spherical from the edge of described spherical, the connection edge of described support ratchet is connected by the section of seamlessly transitting with the edge of described spherical, and the support edge that described support ratchet is relative with described connection edge extends beyond the bottom of described spherical.
Described brake pad is by friction piece, locating piece and dunnage one sinter molding, and described friction piece constitutes described friction part, and described dunnage is that the middle part is the thin plate of spherical structure, and its land portions constitutes described spherical supporting portion; Described locating piece one end moulding positioning part, described positioning part is passed described dunnage and is inserted in the described positioning hole, and the other end is connected with described friction piece.
Described combination backboard is spliced by two asymmetrical described backboards, and the quantity of the described positioning hole on one of them described backboard is greater than the quantity of the described positioning hole on another described backboard.
Form the coaxial flat hole of ream of a plurality of and described positioning hole on the described backboard, place described elastic support sheet on the flat hole of described ream, the slightly larger in diameter in the flat hole of described ream is in the external diameter of described elastic support sheet.
Described backboard is one-body molded on the side away from described brake pad a dovetail structure.
Described jump ring is by the spring steel bending and molding, and it comprises two supporting legs and circular collar, and described circular collar is connected in the locating groove of described positioning part.
Described support ratchet comprises one section conical junction surface and one section columniform supporting surface, and described junction surface and described supporting surface pass through arc transition.
Described spherical is made up of edge land portions and bottom land portions, the radius of curvature of described edge land portions is less than the radius of curvature of described bottom land portions, described edge land portions contacts with the land portions face of described brake lining brake pad, and leaves the gap between described bottom land portions and the described brake lining brake pad.
Described spherical is made up of one section sphere, and described spherical contacts with the land portions face of described brake lining brake pad.
By U-shaped opening transition, the mouth end and the described section of seamlessly transitting of described U-shaped opening have a determining deviation between the adjacent described support ratchet, are symmetrical arranged 4 described support ratchets along the outside of described spherical.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) brake pad of the present utility model constitutes floating type linkage structure by the elastic support sheet is set between brake pad and backboard, the elastic support sheet be provided for supporting the brake lining brake pad land portions spherical and be positioned at the support ratchet in the spherical outside, the support ratchet is fixed in the positioning hole of friction block, when bullet train is braked, brake pad floats by spherical and supports, can freely adjust the best effort face, brake pad is increased with the effective brake area that contacts of brake disc, alleviated the eccentric wear phenomenon of brake pad.Simultaneously, separate by the elastic support sheet between brake pad and the backboard, the heat radiation when being conducive to brake pad and brake disc contact friction has guaranteed the operating life of brake disc.And spherical is connected by smooth transition surface with supporting between the ratchet, when brake pad is subjected to bigger stress, stress outwards can be disperseed, and the support ratchet is outwards stretched.Than the structure of existing brake pad, the support performance of elastic support sheet of the present utility model and elasticity all improve greatly.
(2) further, brake pad of the present utility model locks backboard and brake pad by jump ring, makes the connection of each parts simply compact.The friction part of brake pad is set to hexagonal structure, intermeshes in a plurality of brake pad Hexagons limit, realizes the locking of brake pad substantially horizontal in brake lining backboard mounting plane.
(3) further, in the utility model, the support ratchet of elastic support sheet comprises one section conical junction surface and one section columniform supporting surface, and junction surface and supporting surface pass through arc transition.Reduced the problem that stress is concentrated, be beneficial to the support ratchet more and outwards carry out resiliently deformable.
(4) further, in the utility model, the spherical of elastic support sheet is made up of edge land portions and bottom land portions, and the edge land portions contacts with the land portions face of brake lining brake pad, and leaves the gap between bottom land portions and the brake lining brake pad; This structure can make the rotation of brake pad more flexible.
(5) further, in the utility model, by U-shaped opening transition, the mouth end and the described section of seamlessly transitting of U-shaped opening have a determining deviation between the adjacent supports ratchet in the elastic support sheet; Because the section of seamlessly transitting that supports between ratchet and the spherical is the main stress concentrated position of elastic support sheet, U-shaped opening with seamlessly transit spacer segment one segment distance and can make the supportive of elastic support sheet improve the phenomenon of having avoided the support force difference to cause ratchet to fracture.
Description of drawings
Content of the present utility model is easier clearly to be understood in order to make, and according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the structural representation of composite floating type brake pad of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is the structural representation of brake pad of the present utility model;
Fig. 4 is the plan view of elastic support sheet;
Fig. 5 is the sectional view of elastic support sheet;
Fig. 6 is the sectional view of another kind of elastic support sheet;
Fig. 7 is the structural representation of jump ring.
Reference character is expressed as among the figure:
The 1-backboard, 11-positioning hole, the flat hole of 12-ream, 13-anti-rotation projection, the 2-brake pad, 21-friction part, the spherical supporting portion of 22-, 23-positioning part, the 3-jump ring, 31-supporting leg, the circular collar of 32-, 4-elastic support sheet, the 41-spherical, the 411-pilot hole, the 412-edge, 42-supports ratchet, the 43-section of seamlessly transitting, 421-connects edge, 422-support edge, 5-friction piece, the 6-locating piece, 7-dunnage, 8-dovetail structure.
Embodiment
Below with reference to accompanying drawing, use following examples that the utility model is further set forth.
Fig. 1, Fig. 2 are composite floating type brake pad of the present utility model, and it comprises, splices the combination backboard that is formed by connecting mutually by two backboards 1; Be arranged on several brake pads 2 on the described backboard 1; Be arranged at the elastic support sheet 4 between described brake pad 2 and the described backboard 1, but and described brake pad 2 floating grounds be connected in jump ring 3 on described first backboard 1.
Wherein, arrange closely in order to make the described brake pad 2 that is arranged on the described backboard 1, utilize the space of described backboard 1 as much as possible, described combination backboard is spliced by two asymmetrical described backboards 1, the quantity of the described positioning hole 11 on one of them described backboard 1 is greater than the quantity of the described positioning hole 11 on another described backboard 1, in the present embodiment, 8 described positioning holes 11 are set on the backboard 1 of upside, the described backboard 1 of downside arranges 9 described positioning holes 11.As shown in Figure 2, form a plurality of positioning holes 11 for the described brake pad 2 of connection on the described backboard 1; Preferably, form the coaxial flat hole 12 of ream of a plurality of and described positioning hole 11 on the described backboard 1, place described elastic support sheet 4 on the flat hole 12 of described ream, the slightly larger in diameter in the flat hole 12 of described ream is in the external diameter of described elastic support sheet 4.In the present embodiment, described backboard 1 is one-body molded on the side away from described brake pad 2 a dovetail structure 8.
As shown in Figure 2, described brake pad 2 comprises friction part 21, insert the positioning part 23 of described positioning hole 11 and be arranged at spherical supporting portion 22 between described friction part 21 and the described positioning part 23, the sphere of described spherical supporting portion 22 protrudes to described positioning part 23 directions.In the present embodiment, as shown in Figure 3, described brake pad 2 is by friction piece 5, locating piece 6 and dunnage 7 one sinter moldings, described friction piece 5 is Hexagon, it constitutes described friction part 21, intermeshes in a plurality of brake pad Hexagons limit, realizes the locking of brake pad substantially horizontal in brake lining backboard mounting plane; Described dunnage 7 is the thin plate of spherical structure for the middle part, and its profile is consistent with the shape of described friction piece 5, and its land portions constitutes described spherical supporting portion 22; Described locating piece 6 one end moulding positioning parts 23, described positioning part 23 are passed described dunnage 7 and are inserted in the described positioning hole 11, and the other end is connected with described friction piece 5.Wherein, form locating groove 231 on the described positioning part 23.
In the present embodiment, a described brake pad on the described backboard 1 of downside can't intermesh with other brake pads and realize the substantially horizontal locking, therefore, forms anti-rotation projection 13 at described backboard 1, is used for preventing this brake pad substantially horizontal rotation.
As shown in Figure 7, described jump ring 3 is by the spring steel bending and molding, and it comprises two supporting legs 31 and circular collar 32, and described circular collar 32 is connected on the locating groove 231 of described positioning part 23.
Described elastic support sheet 4 is by the impact briquetting of high-temperature alloy rustproof spring steel material; As shown in Figure 4, it comprises, spherical 41 is fitted and connected with described spherical supporting portion 22; The bottom centre of described spherical 41 forms and is suitable for the pilot hole 411 that described positioning part 23 is passed; Be arranged at some support ratchets 42 in described spherical 41 outsides, described support ratchet 42 extends away from described pilot hole 411 directions to bottom and the tendency of described spherical 41 from the edge 412 of described spherical 41, the connection edge 421 of described support ratchet 42 is connected by the section of seamlessly transitting 43 with the edge of described spherical 41, and described support ratchet 42 and described connection edge 421 relative support edges 422 extend beyond the bottom of described spherical 41.
Described support ratchet 42 comprises one section conical junction surface 423 and one section columniform supporting surface 424, and described junction surface 423 passes through arc transition with described supporting surface 424.
As shown in Figure 5, described spherical 41 is made up of edge land portions and bottom land portions, the radius of curvature of described edge land portions is less than the radius of curvature of described bottom land portions, described edge land portions contacts with the land portions face of described brake lining brake pad, and leaves the gap between described bottom land portions and the described brake lining brake pad.
In order to cut down finished cost, as shown in Figure 6, described spherical 41 can also be made up of one section sphere, and described spherical 41 contacts with the land portions face of described brake lining brake pad.
By U-shaped opening 44 transition, the mouth end and the described section of seamlessly transitting 43 of described U-shaped opening 44 have a determining deviation between the adjacent described support ratchet 42, are symmetrical arranged 4 described support ratchets 42 along the outside of described spherical 41.
Brake pad assembling of the present utility model is as follows:
Described support ratchet 42 with several described elastic support sheets 4 is positioned in the flat hole 12 of described ream successively, the described positioning part 23 of several described brake pads 2 is passed respectively successively in the described positioning hole 11 of the described pilot hole 411 of described elastic support sheet 4 and described first backboard 1, in the other end of described backboard 1 is connected in described jump ring 3 draw-in groove on the described positioning part 23 of described brake pad 2, makes described relatively first backboard 1 of described brake pad 2 can have certain amount of floating ground up and down and connect.
During braking device work, retardation pressure acts on the described backboard 1, is delivered on the described brake pad 2 by some elastic support sheets 4, and some brake pad 2 steady applying brake discs are implemented braking.Because contacting with the spherical supporting portion 22 of described brake pad 2, the spherical 41 of described elastic support sheet 4 make the brake lining brake pad can realize that the three-dimensional trace rotates, so that the fricting working surface of brake pad farthest contacts with brake disc, prevent the problem of brake pad eccentric wear.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all mode of executions exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the utility model creation.

Claims (10)

1. composite floating type brake pad, it comprises,
The combination backboard, it forms a plurality of positioning holes (11) by two backboards (1) splicing connection mutually on described backboard (1);
Several brake pads (2), it comprises, friction part (21), insert the positioning part (23) of described positioning hole (11) and be arranged at described friction part (21) and described positioning part (23) between spherical supporting portion (22), the sphere of described spherical supporting portion (22) protrudes to described positioning part (23) direction;
Several jump rings (3), its described jump ring are connected on the described positioning part (23), and described brake pad (2) is connected on the described backboard (1); It is characterized in that:
Also comprise the elastic support sheet (4) that is arranged between described brake pad (2) and the described backboard (1), it comprises, spherical (41) is fitted and connected with described spherical supporting portion (22); The bottom centre of described spherical (41) forms and is suitable for the pilot hole (411) that passes described positioning part (23); Be arranged at some support ratchets (42) in described spherical (41) outside, described support ratchet (42) extends away from described pilot hole (411) direction to bottom and the tendency of described spherical (41) from the edge (412) of described spherical (41), the connection edge (421) of described support ratchet (42) is connected by the section of seamlessly transitting (43) with the edge of described spherical (41), and the support edge (422) that described support ratchet (42) is relative with described connection edge (421) extends beyond the bottom of described spherical (41).
2. composite floating type brake pad according to claim 1 is characterized in that:
Described brake pad (2) is by friction piece (5), locating piece (6) and dunnage (7) one sinter molding, described friction piece (5) is Hexagon, it constitutes described friction part (21), described dunnage (7) is the thin plate of spherical structure for the middle part, and its land portions constitutes described spherical supporting portion (22); Described locating piece (6) one end moulding positioning parts (23), described positioning part (23) are passed described dunnage (7) and are inserted in the described positioning hole (11), and the other end is connected with described friction piece (5).
3. composite floating type brake pad according to claim 1 and 2 is characterized in that:
Described combination backboard is spliced by two asymmetrical described backboards (1), and the quantity of the described positioning hole (11) on one of them described backboard (1) is greater than the quantity of the described positioning hole (11) on another described backboard (1).
4. composite floating type brake pad according to claim 3 is characterized in that:
Form the coaxial flat hole of ream (12) of a plurality of and described positioning hole (11) on the described backboard (1), the flat hole of described ream (12) is gone up and is placed described elastic support sheet (4), and the slightly larger in diameter in the flat hole of described ream (12) is in the external diameter of described elastic support sheet (4).
5. composite floating type brake pad according to claim 4 is characterized in that:
Described backboard (1) is one-body molded on the side away from described brake pad (2) a dovetail structure (8).
6. composite floating type brake pad according to claim 5 is characterized in that:
Described jump ring (3) is by the spring steel bending and molding, and it comprises two supporting legs (31) and circular collar (32), and described circular collar (32) is connected in the locating groove (231) of described positioning part (23).
7. composite floating type brake pad according to claim 6 is characterized in that:
Described support ratchet (42) comprises one section conical junction surface (423) and one section columniform supporting surface (424), and described junction surface (423) passes through arc transition with described supporting surface (424).
8. composite floating type brake pad according to claim 7 is characterized in that:
Described spherical (41) is made up of edge land portions and bottom land portions, the radius of curvature of described edge land portions is less than the radius of curvature of described bottom land portions, described edge land portions contacts with the land portions face of described brake lining brake pad, and leaves the gap between described bottom land portions and the described brake lining brake pad.
9. composite floating type brake pad according to claim 7 is characterized in that:
Described spherical (41) is made up of one section sphere, and described spherical (41) contacts with the land portions face of described brake lining brake pad.
10. composite floating type brake pad according to claim 7 is characterized in that:
Between the adjacent described support ratchet (42) by U-shaped opening (44) transition, the mouth end and the described section of seamlessly transitting (43) of described U-shaped opening (44) have a determining deviation, are symmetrical arranged 4 described support ratchets (42) along the outside of described spherical (41).
CN 201320069189 2013-02-06 2013-02-06 Combined floating type brake pad Withdrawn - After Issue CN203146655U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320069189 CN203146655U (en) 2013-02-06 2013-02-06 Combined floating type brake pad

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320069189 CN203146655U (en) 2013-02-06 2013-02-06 Combined floating type brake pad

Publications (1)

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CN203146655U true CN203146655U (en) 2013-08-21

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CN 201320069189 Withdrawn - After Issue CN203146655U (en) 2013-02-06 2013-02-06 Combined floating type brake pad

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103133570A (en) * 2013-02-06 2013-06-05 北京天宜上佳新材料有限公司 Combination floating type brake pad
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
DE102015109033A1 (en) * 2015-06-09 2016-12-15 Federal-Mogul Bremsbelag Gmbh Arrangement of friction lining elements in brake pads to increase a contact force between the friction lining elements during braking operation
WO2018002472A1 (en) * 2016-06-24 2018-01-04 Flertex Sinter Brake pad assembly
CN111322334A (en) * 2020-03-09 2020-06-23 西南交通大学 High-speed train braking system integrating interface, loading optimization and fault monitoring

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103133570A (en) * 2013-02-06 2013-06-05 北京天宜上佳新材料有限公司 Combination floating type brake pad
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
CN103133570B (en) * 2013-02-06 2016-01-13 北京天宜上佳新材料有限公司 Composite floating type brake pad
EA029606B1 (en) * 2013-02-06 2018-04-30 Бейджинг Тяньишанцзя Нью Матириал Корп., Лтд Floating brake pad for a train
DE102015109033A1 (en) * 2015-06-09 2016-12-15 Federal-Mogul Bremsbelag Gmbh Arrangement of friction lining elements in brake pads to increase a contact force between the friction lining elements during braking operation
WO2018002472A1 (en) * 2016-06-24 2018-01-04 Flertex Sinter Brake pad assembly
CN111322334A (en) * 2020-03-09 2020-06-23 西南交通大学 High-speed train braking system integrating interface, loading optimization and fault monitoring

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GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
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Granted publication date: 20130821

Effective date of abandoning: 20160113