CN203146658U - Floating type brake pad for train - Google Patents

Floating type brake pad for train Download PDF

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Publication number
CN203146658U
CN203146658U CN 201320069328 CN201320069328U CN203146658U CN 203146658 U CN203146658 U CN 203146658U CN 201320069328 CN201320069328 CN 201320069328 CN 201320069328 U CN201320069328 U CN 201320069328U CN 203146658 U CN203146658 U CN 203146658U
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CN
China
Prior art keywords
brake pad
spherical
support
train
supporting
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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Withdrawn - After Issue
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CN 201320069328
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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 201320069328 priority Critical patent/CN203146658U/en
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Publication of CN203146658U publication Critical patent/CN203146658U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model provides a floating type brake pad for a train. The floating type brake pad comprises a back plate, a friction block, a clamp spring and an elastic support piece arranged between the friction block and the back plate. The elastic support piece comprises a spherical support face and a support pawl arranged on the outer side of the spherical support face. The spherical support face is adhered to the spherical support portion of the friction block. A guiding hole suitable for a positioning portion of the friction block to penetrate through is formed at the center of the bottom of the spherical support face. The support pawl extends from the edge of the spherical support face towards the bottom of the spherical support face and trends the direction away from the guiding hole, and the connecting edge of the support pawl and the edge of the spherical support face are connected with the bottom of the support pawl and the bottom of the support edge extending out of the spherical support face through smooth transition sections. The problem that a part of the pawl of the elastic support piece of the brake pad does not extend outward but is bent inward is solved, the elastic support piece can extend outward along the support pawl direction when subjected to stress, and support failure of the corresponding portion is avoided.

Description

The floating type brake pad of train
Technical field
The utility model relates to the floating type brake pad of a kind of train, belongs to the train braking technical field.
Background technique
At present, in the high-speed train braking device, what adopt usually is the disc type brake structure.The disc type brake structure mainly comprises brake disc and brake pad, and above-mentioned brake structure has consumed the kinetic energy of moving vehicle or equipment by the phase mutual friction of brake disc with brake pad, makes the train stop motion.But, because what brake pad generally adopted is the fixedly connected mode of rivet, so when braking, be prone to the phenomenon that to fit fully between brake pad on the brake pad and the brake disc, make acting on brake pad and the brake disc that active force can not be average, thereby the high stress point that causes brake pad crackle occurs, falls piece, damaged, produces the localized hyperthermia district, shortened working life of brake pad, influences braking effect.
For addressing the above problem, Chinese patent CN102384195A discloses a kind of composite floating type brake pad, this brake pad is the scotch block assembly that symmetric arrays distributes on supporting plate, scotch block assembly comprises: the brake pad, convex surface seat, concave surface seat, connecting rod and the pin that are sintered to one by brake slipper and base plate, the convex surface seat is fixed on the base plate of brake pad, at match with the protruding sphere shape concave surface seat of concave spherical of rotation of the protruding sphere installing of convex surface seat.The floating type brake pad of combinations thereof, by the convex surface seat is fixed on the brake pad base plate, and concave surface seat with matching is set between base plate and convex surface seat, and make between brake pad and base plate and form floating structure, can the retardation pressure of proportionality action on supporting plate.But there is following problem in said structure: 1. the convex surface seat does not have elasticity, can't satisfy simultaneously brake pad in the vertical direction with substantially horizontal on free adjustment, brake pad is difficult to freely to adjust to the best effort face; 2. the linkage structure between brake pad and the convex surface seat can cause producing frictional force between brake pad and the convex surface seat, and reduced the working life of brake pad.
For solution never the rubber-like structure be difficult to make brake pad freely to adjust to the problem of best effort face, Chinese patent literature CN102401047 discloses a kind of elastic support sheet, comprises spherical part, centre pilot bore portion and fixed support ratchet part.By above-mentioned elastic support sheet is installed between brake pad and the base plate, can make train when braking, the brake pad of brake lining can not only freely be adjusted in elastic support sheet spherical, satisfy that position on the support plate substantially horizontal is adjusted and the direction vertical with support plate to a certain extent on the position adjustment, and because the setting of fixed support ratchet, make support plate have structural elasticity, can satisfy the position adjustment of brake pad on the support plate Vertical direction, improve effective friction area of brake pad and brake disc.But, between fixed pawl in this technological scheme and the spherical by having the right angle transition 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, the support of appropriate section was lost efficacy, even cause the damage that fractures of the ratchet of this part.
The model utility content
For this reason, technical problem to be solved in the utility model is that the elastic supporting member for supporting optical member part ratchet 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, the floating type brake pad of train of the present utility model comprises backboard, and two described backboards are spliced into the brake lining backboard; Form 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 the supporting portion, described supporting portion is spheric structure, the sphere of described supporting portion protrudes to described positioning part direction; Several jump rings, it is connected on the described positioning part, is connected in described brake pad on the described backboard with having certain amount of floating;
Also comprise the elastic support sheet that is arranged between described brake pad and the described backboard, described elastic support sheet comprises: spherical is fitted and connected with described supporting portion; The bottom of described spherical is provided with and is suitable for the pilot hole that described positioning part is passed; Be arranged at the support ratchet in the described spherical outside, described support ratchet extends away from described pilot hole direction to described spherical bottom and tendency 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 relative with described connection edge extends to the bottom that surpasses described spherical on the described support ratchet.
Described backboard has coattail board in side welding or the riveted joint away from described brake pad.
Described brake pad is by friction piece, locating piece and dunnage one sinter molding, and wherein, described friction piece constitutes described friction part, and described dunnage is that the middle part is the thin plate of spheric structure, and wherein outer spherical surface partly constitutes described supporting portion; The described positioning part of one end moulding of described locating piece, 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.
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 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, described junction surface and described supporting surface pass through arc transition.
The cone angle of described junction surface is 90-150 °.
Described spherical, formed by 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 described supporting portion face of described brake pad, and leaves the gap between the described supporting portion of described bottom land portions and described brake pad.
Described spherical is made up of one section sphere, and described spherical contacts with the described supporting portion face of described 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.
The outside along described spherical is symmetrical arranged 4 described support ratchets.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) the floating type brake pad of train of the present utility model, between described brake pad and described backboard, be provided with the elastic support sheet, described elastic support sheet comprises spherical and supports ratchet, described support ratchet extends away from described pilot hole direction to described spherical bottom and tendency 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, the support edge relative with described connection edge extends to the bottom that surpasses described spherical on the described support ratchet, seamlessly transit and to make stress better average, the phenomenon that can cause the part to lose has not avoided the inside bending of support ratchet of elastic support sheet to cause supporting the problem of inefficacy.The support edge relative with described connection edge extends to the bottom that surpasses described spherical on described support ratchet, make the bottom of spherical when not being subjected to stress, be in vacant state, form floating type structure, when the elastic support sheet is subjected to stress, can provide bigger amount of elasticity.
(2) train of the present utility model is by friction piece with the brake pad of floating type brake pad, locating piece and dunnage one sinter molding, friction piece, locating piece and dunnage are one by sinter molding, can avoid producing wearing and tearing between friction piece and the locating piece, cause the problem of the reduction in working life of brake pad.
(3) form the flat hole of a plurality of reams on the backboard of train of the present utility model with floating type brake pad, the flat bore dia of ream that is used for the described elastic support sheet of placement is set to be slightly larger than the external diameter of elastic support sheet, the ratchet that can be the elastic support sheet provides enough extending spaces when stretched out by stress, can prevent from also simultaneously that ratchet from excessively stretching out can't reply after causing the deformation failure of elastic support sheet, external force to remove.
(4) train of the present utility model comprises one section conical junction surface and one section columniform supporting surface with the support ratchet of elasticity support plate in the floating type brake pad, and junction surface and supporting surface pass through arc transition.Support ratchet and formed by conical junction surface and cylindrical support face by arc transition, the stress that can well evenly be subjected to, the phenomenon of avoiding the part of elastic support sheet to occur losing.
(5) train of the present utility model is with in the floating type brake pad, and 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 of elastic support sheet.U-shaped opening can make each support ratchet and not interfere with each other when stretching out, and can play good buffer function respectively when being subjected to the stress of different direction.
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 train of the present utility model with the structural representation of a backboard of floating type brake pad;
Fig. 2 is train of the present utility model is spliced into integral body with two backboards of floating type brake pad structural representation;
To be train of the present utility model be installed in structural representation on the backboard with the coattail board of floating type brake pad to Fig. 3;
Fig. 4 is train of the present utility model with the partial sectional view of floating type brake pad;
Fig. 5 is train of the present utility model with the structural representation of the brake pad of floating type brake pad;
Fig. 6 is train of the present utility model with the partial sectional view of the backboard of floating type brake pad;
Fig. 7 is train of the present utility model with the structural representation of the jump ring of floating type brake pad;
Fig. 8 is train of the present utility model with the stereogram of the elastic support sheet of floating type brake pad;
Fig. 9 is that train among the embodiment 1 is with the sectional view of the elastic support sheet of floating type brake pad;
Figure 10 is that train among the embodiment 2 is with the sectional view of the elastic support sheet of floating type brake pad;
Reference character is expressed as among the figure: the 1-backboard; The 11-positioning hole; The flat hole of 12-ream; 2-elastic support sheet; The 21-spherical; The 211-pilot hole; The 212-edge; 22-supports ratchet; 221-connects edge; The 222-support edge; 223-U type opening; The a-junction surface; The b-supporting surface; C-edge land portions; D-bottom land portions; The 23-section of seamlessly transitting; The 3-brake pad; The 31-friction part; The 3a-friction piece; The 32-positioning part; The 320-locating groove; The 3b-locating piece; The 33-supporting portion; The 3c-dunnage; The 4-jump ring; The 41-supporting leg; The circular collar of 42-.
Embodiment
Below with reference to accompanying drawing, use following examples that the utility model is further set forth.
Embodiment 1
Be depicted as the floating type brake pad of train of the present utility model as Fig. 1-9, it comprises: 1, two the described backboard 1 of backboard that forms a plurality of positioning holes 11 is spliced into the brake lining backboard; Several brake pads 3, it comprises, friction part 31 inserts the positioning part 32 of described positioning hole 11 and is arranged at supporting portion 33 between described friction part 31 and the described positioning part 32, described supporting portion 33 is spheric structure, and the sphere of described supporting portion 33 protrudes to described positioning part 32 directions; Several jump rings 4, its described jump ring 4 is connected on the described positioning part 32, and described brake pad 3 is connected on the described backboard 1 with having certain amount of floating; Also comprise the elastic support sheet 2 that is arranged between described brake pad 3 and the described backboard 1, described elastic support sheet 2 comprises: spherical 21, be fitted and connected with described supporting portion 33, the bottom of described spherical 21 is provided with and is suitable for the pilot hole 211 that described positioning part 32 is passed; Be arranged at the support ratchet 22 in described spherical 21 outsides, described support ratchet 22 also is inclined to described spherical 21 bottoms away from described pilot hole 211 directions extension from the edge 212 of described spherical 21; The connection edge 221 of described support ratchet 22 is connected by the section of seamlessly transitting 23 with the edge of described spherical 21, and support edge 222 relative with described connection edge 221 on the described support ratchet 22 extends to the bottom that surpasses described spherical 21.
When braking device was worked, retardation pressure acted on the described backboard 1, was delivered on the described brake pad 3 by some elastic support sheets 2, and some brake pad 3 steady applying brake discs are implemented braking.Because contacting with the supporting portion 33 of described brake pad 3, the spherical 21 of described elastic support sheet 2 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.
Described backboard 1 also fixedly has coattail board 8 on away from a side of described brake pad 2.Wherein, the means of fixation of described coattail board 8 includes but not limited to welding or riveted joint, and in the present embodiment, described coattail board 8 is provided with riveted holes, by rivet described coattail board 8 is installed on the described backboard 1.
Need to prove, for realizing the purpose of this utility model, the molding mode of described brake pad 3 is not unique, it is preferred embodiment a kind of that present embodiment provides, as shown in Figure 5, described brake pad 3 is by friction piece 3a, locating piece 3b and dunnage 3c one sinter molding, wherein, described friction piece 3a constitutes described friction part 31, described dunnage 3c is that the middle part is the thin plate of spheric structure, and wherein outer spherical surface partly constitutes described supporting portion 33, and its profile is consistent with the profile of described brake pad 3; The described positioning part 32 of an end moulding of described locating piece 3b, described positioning part 32 are passed described dunnage 3c and are inserted in the described positioning hole 11, and the other end is connected with described friction piece 3a.Such mode of execution can be avoided between friction piece and the locating piece producing wearing and tearing and cause the problem that reduces in working life of brake pad.
Simultaneously, the shape of described brake pad 3 is not unique yet, as long as it guarantee intermeshes between the adjacent brake pad, realizes the locking of described brake pad 3 substantially horizontal in the mounting plane of described backboard 1.In the present embodiment, the rubbing surface of described brake pad 3 that is positioned at the middle part of described brake lining backboard has two parallel straight flanges, and parallel straight flange two ends connect by circular arc; Having the limit of arc and the curved portion of described backboard 1 fits substantially; Straight portion locks mutually, described brake pad 3 can only be offset by trace, and can not rotate in the horizontal direction.The described brake pad 3 that is positioned at the end of described brake lining backboard is block that to have a limit be the pentagonal section of arc, wherein the arc limit is near the curved portion of described backboard 1, the straight flange of other straight flanges and adjacent described brake pad 3 locks mutually, described brake pad 3 can only be offset by trace, and can not rotate in the horizontal direction.
Same, for realizing the purpose of this utility model, the molding mode of described jump ring 4 is not unique yet, present embodiment provides a kind of concrete design, as shown in Figure 7, described jump ring 4 is by the spring steel bending and molding, and it comprises two supporting legs 41 and circular collar 42, and described circular collar 42 is connected in the locating groove 320 of described positioning part 32.
In order when stretched out by stress, to have enough extending spaces at the ratchet of elastic support sheet, preventing also simultaneously that ratchet from excessively stretching out can't reply after causing the deformation failure of elastic support sheet, external force to remove, as shown in Figure 5, 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 2 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 2.
In order better evenly to support the stress that ratchet is subjected to, the phenomenon of avoiding the part of elastic support sheet to occur losing, described support ratchet 22 can be set to following structure: as shown in Figure 9, described support ratchet 22 is made up of one section conical junction surface a and one section columniform supporting surface b, and described junction surface a and described supporting surface b pass through arc transition.Wherein, the cone angle of described junction surface a is not unique, can get the arbitrary value in 90-150 °, in the present embodiment, provides a kind of preferred design, and the cone angle of described junction surface a is 130 °.Same, for realizing the purpose of this utility model, the quantity of described support ratchet 22 is not unique yet, and a kind of concrete design is provided in the present embodiment, is symmetrical arranged 4 described support ratchets 22 along the outside of described spherical 21.
For the slipping that makes brake pad more flexible, in the present embodiment, described spherical 21, formed by edge land portions c and bottom land portions d, the radius of curvature of described edge land portions c is less than the radius of curvature of described bottom land portions d, described edge land portions c directly contacts with the described supporting portion 33 of described brake pad 3, and leaves the gap between the described supporting portion 33 of described bottom land portions d and described brake pad 3.
Do not interfere with each other when stretching out for making each support ratchet, can play good buffer function respectively when being subjected to the stress of different direction, by U-shaped opening 223 transition, the mouth end and the described section of seamlessly transitting 23 of described U-shaped opening 223 have a determining deviation between the adjacent described support ratchet 22.
Embodiment 2
Present embodiment and embodiment's 1 structure is basic identical, and the distinctive points of existence is:
As shown in figure 10, in the present embodiment, described spherical 21 is made up of one section sphere, described spherical 21 contacts with 33 of the described supporting portions of described brake pad 3, form described spherical 21 by edge land portions c and bottom land portions d to replace among the embodiment 1, in the present embodiment, the set-up mode of described spherical 21 makes the machining operation of elastic support sheet convenient.
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. floating type brake pad of train comprises:
Backboard (1), two described backboards (1) are spliced into the brake lining backboard; Form a plurality of positioning holes (11) on the described backboard (1);
Several brake pads (3), it comprises, friction part (31), insert the positioning part (32) of described positioning hole (11) and be arranged at described friction part (31) and described positioning part (32) between supporting portion (33), described supporting portion (33) is spheric structure, and the sphere of described supporting portion (33) protrudes to described positioning part (32) direction;
Several jump rings (4), it is connected on the described positioning part (32), and described brake pad (3) is connected on the described backboard (1) with having certain amount of floating; It is characterized in that,
Also comprise the elastic support sheet (2) that is arranged between described brake pad (3) and the described backboard (1), described elastic support sheet (2) comprising:
Spherical (21) is fitted and connected with described supporting portion (33); The bottom of described spherical (21) is provided with and is suitable for the pilot hole (211) that passes described positioning part (32);
Be arranged at the support ratchet (22) in described spherical (21) outside, described support ratchet (22) extends away from described pilot hole (211) direction to described spherical (21) bottom and tendency from the edge (212) of described spherical (21); The connection edge (221) of described support ratchet (22) is connected by the section of seamlessly transitting (23) with the edge of described spherical (21), and described support ratchet (22) is gone up the support edge (222) relative with described connection edge (221) and extended to the bottom that surpasses described spherical (21).
2. the floating type brake pad of train according to claim 1 is characterized in that, described backboard (1) has coattail board (8) in side welding or the riveted joint away from described brake pad (2).
3. the floating type brake pad of train according to claim 1 and 2, it is characterized in that, described brake pad (3) is by friction piece (3a), locating piece (3b) and dunnage (3c) one sinter molding, wherein, described friction piece (3a) constitutes described friction part (31), and described dunnage (3c) is the thin plate of spheric structure for the middle part, and wherein outer spherical surface partly constitutes described supporting portion (33); The described positioning part of one end moulding (32) of described locating piece (3b), described positioning part (32) are passed described dunnage (3c) and are inserted in the described positioning hole (11), and the other end is connected with described friction piece (3a).
4. the floating type brake pad of train according to claim 3, it 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 (2), and the slightly larger in diameter in the flat hole of described ream (12) is in the external diameter of described elastic support sheet (2).
5. the floating type brake pad of train according to claim 4, it is characterized in that, described jump ring (4) is by the spring steel bending and molding, it comprises two supporting legs (41) and circular collar (42), and described circular collar (42) is connected in the locating groove (320) of described positioning part (32).
6. the floating type brake pad of train according to claim 5, it is characterized in that, described support ratchet (22) comprising: one section conical junction surface (a) and one section columniform supporting surface (b), described junction surface (a) passes through arc transition with described supporting surface (b).
7. the floating type brake pad of train according to claim 6 is characterized in that, the cone angle of described junction surface (a) is 90-150 °.
8. the floating type brake pad of train according to claim 7, it is characterized in that: described spherical (21), formed by edge land portions (c) and bottom land portions (d), the radius of curvature of described edge land portions (c) is less than the radius of curvature of described bottom land portions (d), described edge land portions (c) contacts with described supporting portion (33) face of described brake pad (3), and leaves the gap between the described supporting portion (33) of described bottom land portions (d) and described brake pad (3).
9. the floating type brake pad of train according to claim 7, it is characterized in that: described spherical (21) is made up of one section sphere, and described spherical (21) contacts with described supporting portion (33) face of described brake pad (3).
10. the floating type brake pad of train according to claim 1, it is characterized in that: the outside along described spherical (21) is symmetrical arranged 4 described support ratchets (22), by U-shaped opening (223) transition, the mouth end and the described section of seamlessly transitting (23) of described U-shaped opening (223) have a determining deviation between the adjacent described support ratchet (22).
CN 201320069328 2013-02-06 2013-02-06 Floating type brake pad for train Withdrawn - After Issue CN203146658U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320069328 CN203146658U (en) 2013-02-06 2013-02-06 Floating type brake pad for train

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320069328 CN203146658U (en) 2013-02-06 2013-02-06 Floating type brake pad for train

Publications (1)

Publication Number Publication Date
CN203146658U true CN203146658U (en) 2013-08-21

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CN 201320069328 Withdrawn - After Issue CN203146658U (en) 2013-02-06 2013-02-06 Floating type brake pad for train

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103133571A (en) * 2013-02-06 2013-06-05 北京天宜上佳新材料有限公司 Floating type brake pad for train

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103133571A (en) * 2013-02-06 2013-06-05 北京天宜上佳新材料有限公司 Floating type brake pad for train
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
CN103133571B (en) * 2013-02-06 2016-04-13 北京天宜上佳新材料有限公司 Train floatation type brake pad
EA029606B1 (en) * 2013-02-06 2018-04-30 Бейджинг Тяньишанцзя Нью Матириал Корп., Лтд Floating brake pad for a train

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Granted publication date: 20130821

Effective date of abandoning: 20160413